640801980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:154

約数の個数: 576

約数和(自身を含む): 2641766400

約数和(自身を除く): 2000964420

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 19, 20, 21, 26, 28, 29, 30, 35, 36, 38, 39, 42, 45, 52, 57, 58, 60, 63, 65, 70, 71, 76, 78, 84, 87, 90, 91, 95, 105, 114, 116, 117, 126, 130, 133, 140, 142, 145, 156, 171, 174, 180, 182, 190, 195, 203, 210, 213, 228, 234, 247, 252, 260, 261, 266, 273, 284, 285, 290, 315, 342, 348, 355, 364, 377, 380, 390, 399, 406, 420, 426, 435, 455, 468, 494, 497, 522, 532, 546, 551, 570, 580, 585, 609, 630, 639, 665, 684, 710, 741, 754, 780, 798, 812, 819, 852, 855, 870, 910, 923, 988, 994, 1015, 1044, 1065, 1092, 1102, 1131, 1140, 1170, 1197, 1218, 1235, 1260, 1278, 1305, 1330, 1349, 1365, 1420, 1482, 1491, 1508, 1596, 1638, 1653, 1710, 1729, 1740, 1820, 1827, 1846, 1885, 1988, 1995, 2030, 2059, 2130, 2204, 2223, 2262, 2340, 2394, 2436, 2470, 2485, 2556, 2610, 2639, 2660, 2698, 2730, 2755, 2769, 2964, 2982, 3045, 3195, 3276, 3306, 3393, 3420, 3458, 3654, 3692, 3705, 3770, 3857, 3990, 4047, 4060, 4095, 4118, 4260, 4446, 4473, 4524, 4615, 4788, 4940, 4959, 4970, 5187, 5220, 5278, 5396, 5460, 5510, 5538, 5655, 5964, 5985, 6090, 6177, 6390, 6461, 6612, 6745, 6786, 6916, 7163, 7308, 7410, 7455, 7540, 7714, 7917, 7980, 8094, 8190, 8236, 8265, 8307, 8645, 8892, 8946, 9135, 9230, 9443, 9918, 9940, 10295, 10374, 10556, 11020, 11076, 11115, 11310, 11571, 11970, 12141, 12180, 12354, 12780, 12922, 13195, 13490, 13572, 13845, 14326, 14413, 14820, 14910, 15428, 15561, 15834, 16188, 16380, 16530, 16614, 16965, 17290, 17537, 17892, 18270, 18460, 18531, 18886, 19285, 19383, 19836, 20235, 20590, 20748, 21489, 22230, 22365, 22620, 23142, 23751, 23940, 24282, 24708, 24795, 25844, 25935, 26390, 26767, 26980, 27690, 28329, 28652, 28826, 29820, 30885, 31122, 31668, 32305, 33060, 33228, 33930, 34580, 34713, 35074, 35815, 36540, 37062, 37772, 38570, 38766, 39121, 39585, 40470, 41180, 41535, 42978, 43239, 44460, 44730, 46284, 47215, 47502, 48564, 49590, 50141, 51870, 52611, 52780, 53534, 55380, 56658, 57652, 57855, 58149, 60705, 61770, 62244, 64467, 64610, 67860, 69426, 70148, 71630, 72065, 74124, 77140, 77532, 77805, 78242, 79170, 80301, 80940, 83070, 84987, 85956, 86478, 87685, 89460, 92655, 94430, 95004, 96915, 99180, 100282, 103740, 105222, 107068, 107445, 113316, 115710, 116298, 117363, 118755, 121410, 122759, 123540, 128934, 129220, 129717, 133835, 138852, 141645, 143260, 144130, 150423, 155610, 156484, 157833, 158340, 160602, 166140, 169974, 172956, 173565, 175370, 185310, 187369, 188860, 193830, 195605, 200564, 210444, 214890, 216195, 231420, 232596, 234726, 237510, 240903, 242820, 245518, 250705, 257868, 259434, 263055, 267670, 273847, 283290, 288260, 290745, 300846, 311220, 315666, 321204, 322335, 339948, 347130, 350740, 352089, 368277, 370620, 374738, 387660, 391210, 401505, 424935, 429780, 432390, 451269, 469452, 475020, 481806, 491036, 501410, 508573, 518868, 526110, 535340, 547694, 562107, 566580, 581490, 586815, 601692, 613795, 631332, 644670, 648585, 694260, 704178, 736554, 749476, 752115, 782420, 789165, 803010, 821541, 849870, 864780, 902538, 936845, 963612, 1002820, 1017146, 1052220, 1095388, 1104831, 1124214, 1162980, 1173630, 1204515, 1227590, 1289340, 1297170, 1369235, 1408356, 1473108, 1504230, 1525719, 1578330, 1606020, 1643082, 1686321, 1699740, 1760445, 1805076, 1841385, 1873690, 2034292, 2209662, 2248428, 2256345, 2347260, 2409030, 2455180, 2464623, 2542865, 2594340, 2738470, 2810535, 3008460, 3051438, 3156660, 3286164, 3372642, 3520890, 3560011, 3682770, 3747380, 4107705, 4419324, 4512690, 4577157, 4818060, 4929246, 5085730, 5476940, 5524155, 5621070, 6102876, 6745284, 7041780, 7120022, 7365540, 7628595, 8215410, 8431605, 9025380, 9154314, 9858492, 10171460, 10680033, 11048310, 11242140, 12323115, 14240044, 15257190, 16430820, 16863210, 17800055, 18308628, 21360066, 22096620, 22885785, 24646230, 30514380, 32040099, 33726420, 35600110, 42720132, 45771570, 49292460, 53400165, 64080198, 71200220, 91543140, 106800330, 128160396, 160200495, 213600660, 320400990, 640801980]

約数ペア:

[(1, 640801980), (2, 320400990), (3, 213600660), (4, 160200495), (5, 128160396), (6, 106800330), (7, 91543140), (9, 71200220), (10, 64080198), (12, 53400165), (13, 49292460), (14, 45771570), (15, 42720132), (18, 35600110), (19, 33726420), (20, 32040099), (21, 30514380), (26, 24646230), (28, 22885785), (29, 22096620), (30, 21360066), (35, 18308628), (36, 17800055), (38, 16863210), (39, 16430820), (42, 15257190), (45, 14240044), (52, 12323115), (57, 11242140), (58, 11048310), (60, 10680033), (63, 10171460), (65, 9858492), (70, 9154314), (71, 9025380), (76, 8431605), (78, 8215410), (84, 7628595), (87, 7365540), (90, 7120022), (91, 7041780), (95, 6745284), (105, 6102876), (114, 5621070), (116, 5524155), (117, 5476940), (126, 5085730), (130, 4929246), (133, 4818060), (140, 4577157), (142, 4512690), (145, 4419324), (156, 4107705), (171, 3747380), (174, 3682770), (180, 3560011), (182, 3520890), (190, 3372642), (195, 3286164), (203, 3156660), (210, 3051438), (213, 3008460), (228, 2810535), (234, 2738470), (247, 2594340), (252, 2542865), (260, 2464623), (261, 2455180), (266, 2409030), (273, 2347260), (284, 2256345), (285, 2248428), (290, 2209662), (315, 2034292), (342, 1873690), (348, 1841385), (355, 1805076), (364, 1760445), (377, 1699740), (380, 1686321), (390, 1643082), (399, 1606020), (406, 1578330), (420, 1525719), (426, 1504230), (435, 1473108), (455, 1408356), (468, 1369235), (494, 1297170), (497, 1289340), (522, 1227590), (532, 1204515), (546, 1173630), (551, 1162980), (570, 1124214), (580, 1104831), (585, 1095388), (609, 1052220), (630, 1017146), (639, 1002820), (665, 963612), (684, 936845), (710, 902538), (741, 864780), (754, 849870), (780, 821541), (798, 803010), (812, 789165), (819, 782420), (852, 752115), (855, 749476), (870, 736554), (910, 704178), (923, 694260), (988, 648585), (994, 644670), (1015, 631332), (1044, 613795), (1065, 601692), (1092, 586815), (1102, 581490), (1131, 566580), (1140, 562107), (1170, 547694), (1197, 535340), (1218, 526110), (1235, 518868), (1260, 508573), (1278, 501410), (1305, 491036), (1330, 481806), (1349, 475020), (1365, 469452), (1420, 451269), (1482, 432390), (1491, 429780), (1508, 424935), (1596, 401505), (1638, 391210), (1653, 387660), (1710, 374738), (1729, 370620), (1740, 368277), (1820, 352089), (1827, 350740), (1846, 347130), (1885, 339948), (1988, 322335), (1995, 321204), (2030, 315666), (2059, 311220), (2130, 300846), (2204, 290745), (2223, 288260), (2262, 283290), (2340, 273847), (2394, 267670), (2436, 263055), (2470, 259434), (2485, 257868), (2556, 250705), (2610, 245518), (2639, 242820), (2660, 240903), (2698, 237510), (2730, 234726), (2755, 232596), (2769, 231420), (2964, 216195), (2982, 214890), (3045, 210444), (3195, 200564), (3276, 195605), (3306, 193830), (3393, 188860), (3420, 187369), (3458, 185310), (3654, 175370), (3692, 173565), (3705, 172956), (3770, 169974), (3857, 166140), (3990, 160602), (4047, 158340), (4060, 157833), (4095, 156484), (4118, 155610), (4260, 150423), (4446, 144130), (4473, 143260), (4524, 141645), (4615, 138852), (4788, 133835), (4940, 129717), (4959, 129220), (4970, 128934), (5187, 123540), (5220, 122759), (5278, 121410), (5396, 118755), (5460, 117363), (5510, 116298), (5538, 115710), (5655, 113316), (5964, 107445), (5985, 107068), (6090, 105222), (6177, 103740), (6390, 100282), (6461, 99180), (6612, 96915), (6745, 95004), (6786, 94430), (6916, 92655), (7163, 89460), (7308, 87685), (7410, 86478), (7455, 85956), (7540, 84987), (7714, 83070), (7917, 80940), (7980, 80301), (8094, 79170), (8190, 78242), (8236, 77805), (8265, 77532), (8307, 77140), (8645, 74124), (8892, 72065), (8946, 71630), (9135, 70148), (9230, 69426), (9443, 67860), (9918, 64610), (9940, 64467), (10295, 62244), (10374, 61770), (10556, 60705), (11020, 58149), (11076, 57855), (11115, 57652), (11310, 56658), (11571, 55380), (11970, 53534), (12141, 52780), (12180, 52611), (12354, 51870), (12780, 50141), (12922, 49590), (13195, 48564), (13490, 47502), (13572, 47215), (13845, 46284), (14326, 44730), (14413, 44460), (14820, 43239), (14910, 42978), (15428, 41535), (15561, 41180), (15834, 40470), (16188, 39585), (16380, 39121), (16530, 38766), (16614, 38570), (16965, 37772), (17290, 37062), (17537, 36540), (17892, 35815), (18270, 35074), (18460, 34713), (18531, 34580), (18886, 33930), (19285, 33228), (19383, 33060), (19836, 32305), (20235, 31668), (20590, 31122), (20748, 30885), (21489, 29820), (22230, 28826), (22365, 28652), (22620, 28329), (23142, 27690), (23751, 26980), (23940, 26767), (24282, 26390), (24708, 25935), (24795, 25844)]