20100720225

素因数分解:

$3^1\times 5^2\times {\mathrm{268009603}}^1$

素因数の和:268009616

約数の個数: 12

約数和(自身を含む): 33233190896

約数和(自身を除く): 13132470671

約数列:

[1, 3, 5, 15, 25, 75, 268009603, 804028809, 1340048015, 4020144045, 6700240075, 20100720225]

約数ペア:

[(1, 20100720225), (3, 6700240075), (5, 4020144045), (15, 1340048015), (25, 804028809), (75, 268009603)]