31380440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{233}}^1$

素因数の和:301

約数の個数: 128

約数和(自身を含む): 89631360

約数和(自身を除く): 58250920

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 37, 40, 52, 56, 65, 70, 74, 91, 104, 130, 140, 148, 182, 185, 233, 259, 260, 280, 296, 364, 370, 455, 466, 481, 518, 520, 728, 740, 910, 932, 962, 1036, 1165, 1295, 1480, 1631, 1820, 1864, 1924, 2072, 2330, 2405, 2590, 3029, 3262, 3367, 3640, 3848, 4660, 4810, 5180, 6058, 6524, 6734, 8155, 8621, 9320, 9620, 10360, 12116, 13048, 13468, 15145, 16310, 16835, 17242, 19240, 21203, 24232, 26936, 30290, 32620, 33670, 34484, 42406, 43105, 60347, 60580, 65240, 67340, 68968, 84812, 86210, 106015, 112073, 120694, 121160, 134680, 169624, 172420, 212030, 224146, 241388, 301735, 344840, 424060, 448292, 482776, 560365, 603470, 784511, 848120, 896584, 1120730, 1206940, 1569022, 2241460, 2413880, 3138044, 3922555, 4482920, 6276088, 7845110, 15690220, 31380440]

約数ペア:

[(1, 31380440), (2, 15690220), (4, 7845110), (5, 6276088), (7, 4482920), (8, 3922555), (10, 3138044), (13, 2413880), (14, 2241460), (20, 1569022), (26, 1206940), (28, 1120730), (35, 896584), (37, 848120), (40, 784511), (52, 603470), (56, 560365), (65, 482776), (70, 448292), (74, 424060), (91, 344840), (104, 301735), (130, 241388), (140, 224146), (148, 212030), (182, 172420), (185, 169624), (233, 134680), (259, 121160), (260, 120694), (280, 112073), (296, 106015), (364, 86210), (370, 84812), (455, 68968), (466, 67340), (481, 65240), (518, 60580), (520, 60347), (728, 43105), (740, 42406), (910, 34484), (932, 33670), (962, 32620), (1036, 30290), (1165, 26936), (1295, 24232), (1480, 21203), (1631, 19240), (1820, 17242), (1864, 16835), (1924, 16310), (2072, 15145), (2330, 13468), (2405, 13048), (2590, 12116), (3029, 10360), (3262, 9620), (3367, 9320), (3640, 8621), (3848, 8155), (4660, 6734), (4810, 6524), (5180, 6058)]