40720816

素因数分解:

$2^4\times {\mathrm{263}}^1\times {\mathrm{9677}}^1$

素因数の和:9948

約数の個数: 20

約数和(自身を含む): 79204752

約数和(自身を除く): 38483936

約数列:

[1, 2, 4, 8, 16, 263, 526, 1052, 2104, 4208, 9677, 19354, 38708, 77416, 154832, 2545051, 5090102, 10180204, 20360408, 40720816]

約数ペア:

[(1, 40720816), (2, 20360408), (4, 10180204), (8, 5090102), (16, 2545051), (263, 154832), (526, 77416), (1052, 38708), (2104, 19354), (4208, 9677)]