68131940

素因数分解:

$2^2\times 5^1\times {\mathrm{1637}}^1\times {\mathrm{2081}}^1$

素因数の和:3727

約数の個数: 24

約数和(自身を含む): 143233272

約数和(自身を除く): 75101332

約数列:

[1, 2, 4, 5, 10, 20, 1637, 2081, 3274, 4162, 6548, 8185, 8324, 10405, 16370, 20810, 32740, 41620, 3406597, 6813194, 13626388, 17032985, 34065970, 68131940]

約数ペア:

[(1, 68131940), (2, 34065970), (4, 17032985), (5, 13626388), (10, 6813194), (20, 3406597), (1637, 41620), (2081, 32740), (3274, 20810), (4162, 16370), (6548, 10405), (8185, 8324)]