72640016

素因数分解:

$2^4\times {\mathrm{113}}^1\times {\mathrm{40177}}^1$

素因数の和:40298

約数の個数: 20

約数和(自身を含む): 141989052

約数和(自身を除く): 69349036

約数列:

[1, 2, 4, 8, 16, 113, 226, 452, 904, 1808, 40177, 80354, 160708, 321416, 642832, 4540001, 9080002, 18160004, 36320008, 72640016]

約数ペア:

[(1, 72640016), (2, 36320008), (4, 18160004), (8, 9080002), (16, 4540001), (113, 642832), (226, 321416), (452, 160708), (904, 80354), (1808, 40177)]