259998960

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{499}}^1$

素因数の和:695

約数の個数: 160

約数和(自身を含む): 874944000

約数和(自身を除く): 614945040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 167, 195, 208, 240, 260, 312, 334, 390, 499, 501, 520, 624, 668, 780, 835, 998, 1002, 1040, 1336, 1497, 1560, 1670, 1996, 2004, 2171, 2495, 2505, 2672, 2994, 3120, 3340, 3992, 4008, 4342, 4990, 5010, 5988, 6487, 6513, 6680, 7485, 7984, 8016, 8684, 9980, 10020, 10855, 11976, 12974, 13026, 13360, 14970, 17368, 19461, 19960, 20040, 21710, 23952, 25948, 26052, 29940, 32435, 32565, 34736, 38922, 39920, 40080, 43420, 51896, 52104, 59880, 64870, 65130, 77844, 83333, 86840, 97305, 103792, 104208, 119760, 129740, 130260, 155688, 166666, 173680, 194610, 249999, 259480, 260520, 311376, 333332, 389220, 416665, 499998, 518960, 521040, 666664, 778440, 833330, 999996, 1083329, 1249995, 1333328, 1556880, 1666660, 1999992, 2166658, 2499990, 3249987, 3333320, 3999984, 4333316, 4999980, 5416645, 6499974, 6666640, 8666632, 9999960, 10833290, 12999948, 16249935, 17333264, 19999920, 21666580, 25999896, 32499870, 43333160, 51999792, 64999740, 86666320, 129999480, 259998960]

約数ペア:

[(1, 259998960), (2, 129999480), (3, 86666320), (4, 64999740), (5, 51999792), (6, 43333160), (8, 32499870), (10, 25999896), (12, 21666580), (13, 19999920), (15, 17333264), (16, 16249935), (20, 12999948), (24, 10833290), (26, 9999960), (30, 8666632), (39, 6666640), (40, 6499974), (48, 5416645), (52, 4999980), (60, 4333316), (65, 3999984), (78, 3333320), (80, 3249987), (104, 2499990), (120, 2166658), (130, 1999992), (156, 1666660), (167, 1556880), (195, 1333328), (208, 1249995), (240, 1083329), (260, 999996), (312, 833330), (334, 778440), (390, 666664), (499, 521040), (501, 518960), (520, 499998), (624, 416665), (668, 389220), (780, 333332), (835, 311376), (998, 260520), (1002, 259480), (1040, 249999), (1336, 194610), (1497, 173680), (1560, 166666), (1670, 155688), (1996, 130260), (2004, 129740), (2171, 119760), (2495, 104208), (2505, 103792), (2672, 97305), (2994, 86840), (3120, 83333), (3340, 77844), (3992, 65130), (4008, 64870), (4342, 59880), (4990, 52104), (5010, 51896), (5988, 43420), (6487, 40080), (6513, 39920), (6680, 38922), (7485, 34736), (7984, 32565), (8016, 32435), (8684, 29940), (9980, 26052), (10020, 25948), (10855, 23952), (11976, 21710), (12974, 20040), (13026, 19960), (13360, 19461), (14970, 17368)]