19639620

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1$

素因数の和:155

約数の個数: 288

約数和(自身を含む): 80720640

約数和(自身を除く): 61081020

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 13, 14, 15, 18, 20, 21, 22, 26, 28, 30, 33, 35, 36, 39, 42, 44, 45, 52, 55, 60, 63, 65, 66, 70, 77, 78, 84, 90, 91, 99, 105, 109, 110, 117, 126, 130, 132, 140, 143, 154, 156, 165, 180, 182, 195, 198, 210, 218, 220, 231, 234, 252, 260, 273, 286, 308, 315, 327, 330, 364, 385, 390, 396, 420, 429, 436, 455, 462, 468, 495, 545, 546, 572, 585, 630, 654, 660, 693, 715, 763, 770, 780, 819, 858, 910, 924, 981, 990, 1001, 1090, 1092, 1155, 1170, 1199, 1260, 1287, 1308, 1365, 1386, 1417, 1430, 1526, 1540, 1635, 1638, 1716, 1820, 1962, 1980, 2002, 2145, 2180, 2289, 2310, 2340, 2398, 2574, 2730, 2772, 2834, 2860, 3003, 3052, 3270, 3276, 3465, 3597, 3815, 3924, 4004, 4095, 4251, 4290, 4578, 4620, 4796, 4905, 5005, 5148, 5460, 5668, 5995, 6006, 6435, 6540, 6867, 6930, 7085, 7194, 7630, 8190, 8393, 8502, 8580, 9009, 9156, 9810, 9919, 10010, 10791, 11445, 11990, 12012, 12753, 12870, 13734, 13860, 14170, 14388, 15015, 15260, 15587, 16380, 16786, 17004, 17985, 18018, 19620, 19838, 20020, 21255, 21582, 22890, 23980, 25179, 25506, 25740, 27468, 28340, 29757, 30030, 31174, 33572, 34335, 35970, 36036, 39676, 41965, 42510, 43164, 45045, 45780, 46761, 49595, 50358, 51012, 53955, 59514, 60060, 62348, 63765, 68670, 71940, 75537, 77935, 83930, 85020, 89271, 90090, 93522, 99190, 100716, 107910, 109109, 119028, 125895, 127530, 137340, 140283, 148785, 151074, 155870, 167860, 178542, 180180, 187044, 198380, 215820, 218218, 233805, 251790, 255060, 280566, 297570, 302148, 311740, 327327, 357084, 377685, 436436, 446355, 467610, 503580, 545545, 561132, 595140, 654654, 701415, 755370, 892710, 935220, 981981, 1091090, 1309308, 1402830, 1510740, 1636635, 1785420, 1963962, 2182180, 2805660, 3273270, 3927924, 4909905, 6546540, 9819810, 19639620]

約数ペア:

[(1, 19639620), (2, 9819810), (3, 6546540), (4, 4909905), (5, 3927924), (6, 3273270), (7, 2805660), (9, 2182180), (10, 1963962), (11, 1785420), (12, 1636635), (13, 1510740), (14, 1402830), (15, 1309308), (18, 1091090), (20, 981981), (21, 935220), (22, 892710), (26, 755370), (28, 701415), (30, 654654), (33, 595140), (35, 561132), (36, 545545), (39, 503580), (42, 467610), (44, 446355), (45, 436436), (52, 377685), (55, 357084), (60, 327327), (63, 311740), (65, 302148), (66, 297570), (70, 280566), (77, 255060), (78, 251790), (84, 233805), (90, 218218), (91, 215820), (99, 198380), (105, 187044), (109, 180180), (110, 178542), (117, 167860), (126, 155870), (130, 151074), (132, 148785), (140, 140283), (143, 137340), (154, 127530), (156, 125895), (165, 119028), (180, 109109), (182, 107910), (195, 100716), (198, 99190), (210, 93522), (218, 90090), (220, 89271), (231, 85020), (234, 83930), (252, 77935), (260, 75537), (273, 71940), (286, 68670), (308, 63765), (315, 62348), (327, 60060), (330, 59514), (364, 53955), (385, 51012), (390, 50358), (396, 49595), (420, 46761), (429, 45780), (436, 45045), (455, 43164), (462, 42510), (468, 41965), (495, 39676), (545, 36036), (546, 35970), (572, 34335), (585, 33572), (630, 31174), (654, 30030), (660, 29757), (693, 28340), (715, 27468), (763, 25740), (770, 25506), (780, 25179), (819, 23980), (858, 22890), (910, 21582), (924, 21255), (981, 20020), (990, 19838), (1001, 19620), (1090, 18018), (1092, 17985), (1155, 17004), (1170, 16786), (1199, 16380), (1260, 15587), (1287, 15260), (1308, 15015), (1365, 14388), (1386, 14170), (1417, 13860), (1430, 13734), (1526, 12870), (1540, 12753), (1635, 12012), (1638, 11990), (1716, 11445), (1820, 10791), (1962, 10010), (1980, 9919), (2002, 9810), (2145, 9156), (2180, 9009), (2289, 8580), (2310, 8502), (2340, 8393), (2398, 8190), (2574, 7630), (2730, 7194), (2772, 7085), (2834, 6930), (2860, 6867), (3003, 6540), (3052, 6435), (3270, 6006), (3276, 5995), (3465, 5668), (3597, 5460), (3815, 5148), (3924, 5005), (4004, 4905), (4095, 4796), (4251, 4620), (4290, 4578)]