30811420

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{14957}}^1$

素因数の和:15069

約数の個数: 24

約数和(自身を含む): 65336544

約数和(自身を除く): 34525124

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 14957, 29914, 59828, 74785, 149570, 299140, 1540571, 3081142, 6162284, 7702855, 15405710, 30811420]

約数ペア:

[(1, 30811420), (2, 15405710), (4, 7702855), (5, 6162284), (10, 3081142), (20, 1540571), (103, 299140), (206, 149570), (412, 74785), (515, 59828), (1030, 29914), (2060, 14957)]