31574920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1481}}^1$

素因数の和:1546

約数の個数: 64

約数和(自身を含む): 78427440

約数和(自身を除く): 46852520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 41, 52, 65, 82, 104, 130, 164, 205, 260, 328, 410, 520, 533, 820, 1066, 1481, 1640, 2132, 2665, 2962, 4264, 5330, 5924, 7405, 10660, 11848, 14810, 19253, 21320, 29620, 38506, 59240, 60721, 77012, 96265, 121442, 154024, 192530, 242884, 303605, 385060, 485768, 607210, 770120, 789373, 1214420, 1578746, 2428840, 3157492, 3946865, 6314984, 7893730, 15787460, 31574920]

約数ペア:

[(1, 31574920), (2, 15787460), (4, 7893730), (5, 6314984), (8, 3946865), (10, 3157492), (13, 2428840), (20, 1578746), (26, 1214420), (40, 789373), (41, 770120), (52, 607210), (65, 485768), (82, 385060), (104, 303605), (130, 242884), (164, 192530), (205, 154024), (260, 121442), (328, 96265), (410, 77012), (520, 60721), (533, 59240), (820, 38506), (1066, 29620), (1481, 21320), (1640, 19253), (2132, 14810), (2665, 11848), (2962, 10660), (4264, 7405), (5330, 5924)]