81228420

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1$

素因数の和:89

約数の個数: 480

約数和(自身を含む): 341510400

約数和(自身を除く): 260281980

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 19, 20, 21, 26, 27, 28, 29, 30, 35, 36, 38, 39, 42, 45, 52, 54, 57, 58, 60, 63, 65, 70, 76, 78, 81, 84, 87, 90, 91, 95, 105, 108, 114, 116, 117, 126, 130, 133, 135, 140, 145, 156, 162, 171, 174, 180, 182, 189, 190, 195, 203, 210, 228, 234, 247, 252, 260, 261, 266, 270, 273, 285, 290, 315, 324, 342, 348, 351, 364, 377, 378, 380, 390, 399, 405, 406, 420, 435, 455, 468, 494, 513, 522, 532, 540, 546, 551, 567, 570, 580, 585, 609, 630, 665, 684, 702, 741, 754, 756, 780, 783, 798, 810, 812, 819, 855, 870, 910, 945, 988, 1015, 1026, 1044, 1053, 1092, 1102, 1131, 1134, 1140, 1170, 1197, 1218, 1235, 1260, 1305, 1330, 1365, 1404, 1482, 1508, 1539, 1566, 1596, 1620, 1638, 1653, 1710, 1729, 1740, 1755, 1820, 1827, 1885, 1890, 1995, 2030, 2052, 2106, 2204, 2223, 2262, 2268, 2340, 2349, 2394, 2436, 2457, 2470, 2565, 2610, 2639, 2660, 2730, 2755, 2835, 2964, 3045, 3078, 3132, 3276, 3306, 3393, 3420, 3458, 3510, 3591, 3654, 3705, 3770, 3780, 3857, 3915, 3990, 4060, 4095, 4212, 4446, 4524, 4698, 4788, 4914, 4940, 4959, 5130, 5187, 5220, 5265, 5278, 5460, 5481, 5510, 5655, 5670, 5985, 6090, 6156, 6612, 6669, 6786, 6916, 7020, 7163, 7182, 7308, 7371, 7410, 7540, 7695, 7714, 7830, 7917, 7980, 8190, 8265, 8645, 8892, 9135, 9396, 9828, 9918, 10179, 10260, 10374, 10530, 10556, 10773, 10962, 11020, 11115, 11310, 11340, 11571, 11745, 11970, 12180, 12285, 13195, 13338, 13572, 14326, 14364, 14742, 14820, 14877, 15390, 15428, 15561, 15660, 15834, 16380, 16443, 16530, 16965, 17290, 17955, 18270, 19285, 19836, 20007, 20358, 20748, 21060, 21489, 21546, 21924, 22230, 22620, 23142, 23490, 23751, 23940, 24570, 24795, 25935, 26390, 26676, 27405, 28652, 29484, 29754, 30537, 30780, 31122, 31668, 32886, 33060, 33345, 33930, 34580, 34713, 35815, 35910, 36540, 36855, 38570, 39585, 40014, 40716, 42978, 43092, 44460, 44631, 46284, 46683, 46980, 47502, 49140, 49590, 50141, 50895, 51870, 52780, 53865, 54810, 57855, 59508, 61074, 62244, 64467, 65772, 66690, 67860, 69426, 71253, 71630, 71820, 73710, 74385, 77140, 77805, 79170, 80028, 82215, 85956, 89262, 93366, 95004, 99180, 100035, 100282, 101790, 103740, 104139, 107445, 107730, 109620, 115710, 118755, 122148, 128934, 133380, 138852, 140049, 142506, 143260, 147420, 148770, 150423, 152685, 155610, 158340, 164430, 173565, 178524, 186732, 193401, 200070, 200564, 203580, 208278, 213759, 214890, 215460, 223155, 231420, 233415, 237510, 250705, 257868, 280098, 285012, 297540, 300846, 305370, 311220, 312417, 322335, 328860, 347130, 356265, 386802, 400140, 416556, 427518, 429780, 446310, 451269, 466830, 475020, 501410, 520695, 560196, 580203, 601692, 610740, 624834, 644670, 694260, 700245, 712530, 752115, 773604, 855036, 892620, 902538, 933660, 967005, 1002820, 1041390, 1068795, 1160406, 1249668, 1289340, 1353807, 1400490, 1425060, 1504230, 1562085, 1805076, 1934010, 2082780, 2137590, 2256345, 2320812, 2707614, 2800980, 2901015, 3008460, 3124170, 3868020, 4061421, 4275180, 4512690, 5415228, 5802030, 6248340, 6769035, 8122842, 9025380, 11604060, 13538070, 16245684, 20307105, 27076140, 40614210, 81228420]

約数ペア:

[(1, 81228420), (2, 40614210), (3, 27076140), (4, 20307105), (5, 16245684), (6, 13538070), (7, 11604060), (9, 9025380), (10, 8122842), (12, 6769035), (13, 6248340), (14, 5802030), (15, 5415228), (18, 4512690), (19, 4275180), (20, 4061421), (21, 3868020), (26, 3124170), (27, 3008460), (28, 2901015), (29, 2800980), (30, 2707614), (35, 2320812), (36, 2256345), (38, 2137590), (39, 2082780), (42, 1934010), (45, 1805076), (52, 1562085), (54, 1504230), (57, 1425060), (58, 1400490), (60, 1353807), (63, 1289340), (65, 1249668), (70, 1160406), (76, 1068795), (78, 1041390), (81, 1002820), (84, 967005), (87, 933660), (90, 902538), (91, 892620), (95, 855036), (105, 773604), (108, 752115), (114, 712530), (116, 700245), (117, 694260), (126, 644670), (130, 624834), (133, 610740), (135, 601692), (140, 580203), (145, 560196), (156, 520695), (162, 501410), (171, 475020), (174, 466830), (180, 451269), (182, 446310), (189, 429780), (190, 427518), (195, 416556), (203, 400140), (210, 386802), (228, 356265), (234, 347130), (247, 328860), (252, 322335), (260, 312417), (261, 311220), (266, 305370), (270, 300846), (273, 297540), (285, 285012), (290, 280098), (315, 257868), (324, 250705), (342, 237510), (348, 233415), (351, 231420), (364, 223155), (377, 215460), (378, 214890), (380, 213759), (390, 208278), (399, 203580), (405, 200564), (406, 200070), (420, 193401), (435, 186732), (455, 178524), (468, 173565), (494, 164430), (513, 158340), (522, 155610), (532, 152685), (540, 150423), (546, 148770), (551, 147420), (567, 143260), (570, 142506), (580, 140049), (585, 138852), (609, 133380), (630, 128934), (665, 122148), (684, 118755), (702, 115710), (741, 109620), (754, 107730), (756, 107445), (780, 104139), (783, 103740), (798, 101790), (810, 100282), (812, 100035), (819, 99180), (855, 95004), (870, 93366), (910, 89262), (945, 85956), (988, 82215), (1015, 80028), (1026, 79170), (1044, 77805), (1053, 77140), (1092, 74385), (1102, 73710), (1131, 71820), (1134, 71630), (1140, 71253), (1170, 69426), (1197, 67860), (1218, 66690), (1235, 65772), (1260, 64467), (1305, 62244), (1330, 61074), (1365, 59508), (1404, 57855), (1482, 54810), (1508, 53865), (1539, 52780), (1566, 51870), (1596, 50895), (1620, 50141), (1638, 49590), (1653, 49140), (1710, 47502), (1729, 46980), (1740, 46683), (1755, 46284), (1820, 44631), (1827, 44460), (1885, 43092), (1890, 42978), (1995, 40716), (2030, 40014), (2052, 39585), (2106, 38570), (2204, 36855), (2223, 36540), (2262, 35910), (2268, 35815), (2340, 34713), (2349, 34580), (2394, 33930), (2436, 33345), (2457, 33060), (2470, 32886), (2565, 31668), (2610, 31122), (2639, 30780), (2660, 30537), (2730, 29754), (2755, 29484), (2835, 28652), (2964, 27405), (3045, 26676), (3078, 26390), (3132, 25935), (3276, 24795), (3306, 24570), (3393, 23940), (3420, 23751), (3458, 23490), (3510, 23142), (3591, 22620), (3654, 22230), (3705, 21924), (3770, 21546), (3780, 21489), (3857, 21060), (3915, 20748), (3990, 20358), (4060, 20007), (4095, 19836), (4212, 19285), (4446, 18270), (4524, 17955), (4698, 17290), (4788, 16965), (4914, 16530), (4940, 16443), (4959, 16380), (5130, 15834), (5187, 15660), (5220, 15561), (5265, 15428), (5278, 15390), (5460, 14877), (5481, 14820), (5510, 14742), (5655, 14364), (5670, 14326), (5985, 13572), (6090, 13338), (6156, 13195), (6612, 12285), (6669, 12180), (6786, 11970), (6916, 11745), (7020, 11571), (7163, 11340), (7182, 11310), (7308, 11115), (7371, 11020), (7410, 10962), (7540, 10773), (7695, 10556), (7714, 10530), (7830, 10374), (7917, 10260), (7980, 10179), (8190, 9918), (8265, 9828), (8645, 9396), (8892, 9135)]