31515940

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{15299}}^1$

素因数の和:15411

約数の個数: 24

約数和(自身を含む): 66830400

約数和(自身を除く): 35314460

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 15299, 30598, 61196, 76495, 152990, 305980, 1575797, 3151594, 6303188, 7878985, 15757970, 31515940]

約数ペア:

[(1, 31515940), (2, 15757970), (4, 7878985), (5, 6303188), (10, 3151594), (20, 1575797), (103, 305980), (206, 152990), (412, 76495), (515, 61196), (1030, 30598), (2060, 15299)]