31973240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61487}}^1$

素因数の和:61511

約数の個数: 32

約数和(自身を含む): 77474880

約数和(自身を除く): 45501640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 61487, 122974, 245948, 307435, 491896, 614870, 799331, 1229740, 1598662, 2459480, 3197324, 3996655, 6394648, 7993310, 15986620, 31973240]

約数ペア:

[(1, 31973240), (2, 15986620), (4, 7993310), (5, 6394648), (8, 3996655), (10, 3197324), (13, 2459480), (20, 1598662), (26, 1229740), (40, 799331), (52, 614870), (65, 491896), (104, 307435), (130, 245948), (260, 122974), (520, 61487)]