71358820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{274457}}^1$

素因数の和:274479

約数の個数: 24

約数和(自身を含む): 161381304

約数和(自身を除く): 90022484

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 274457, 548914, 1097828, 1372285, 2744570, 3567941, 5489140, 7135882, 14271764, 17839705, 35679410, 71358820]

約数ペア:

[(1, 71358820), (2, 35679410), (4, 17839705), (5, 14271764), (10, 7135882), (13, 5489140), (20, 3567941), (26, 2744570), (52, 1372285), (65, 1097828), (130, 548914), (260, 274457)]