42636620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163987}}^1$

素因数の和:164009

約数の個数: 24

約数和(自身を含む): 96424944

約数和(自身を除く): 53788324

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 163987, 327974, 655948, 819935, 1639870, 2131831, 3279740, 4263662, 8527324, 10659155, 21318310, 42636620]

約数ペア:

[(1, 42636620), (2, 21318310), (4, 10659155), (5, 8527324), (10, 4263662), (13, 3279740), (20, 2131831), (26, 1639870), (52, 819935), (65, 655948), (130, 327974), (260, 163987)]