15986620

素因数分解:

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

素因数の和:61509

約数の個数: 24

約数和(自身を含む): 36154944

約数和(自身を除く): 20168324

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 61487, 122974, 245948, 307435, 614870, 799331, 1229740, 1598662, 3197324, 3996655, 7993310, 15986620]

約数ペア:

[(1, 15986620), (2, 7993310), (4, 3996655), (5, 3197324), (10, 1598662), (13, 1229740), (20, 799331), (26, 614870), (52, 307435), (65, 245948), (130, 122974), (260, 61487)]