40398404

素因数分解:

$2^2\times {\mathrm{113}}^1\times {\mathrm{139}}^1\times {\mathrm{643}}^1$

素因数の和:899

約数の個数: 24

約数和(自身を含む): 71947680

約数和(自身を除く): 31549276

約数列:

[1, 2, 4, 113, 139, 226, 278, 452, 556, 643, 1286, 2572, 15707, 31414, 62828, 72659, 89377, 145318, 178754, 290636, 357508, 10099601, 20199202, 40398404]

約数ペア:

[(1, 40398404), (2, 20199202), (4, 10099601), (113, 357508), (139, 290636), (226, 178754), (278, 145318), (452, 89377), (556, 72659), (643, 62828), (1286, 31414), (2572, 15707)]