72895540

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{88897}}^1$

素因数の和:88947

約数の個数: 24

約数和(自身を含む): 156816072

約数和(自身を除く): 83920532

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 88897, 177794, 355588, 444485, 888970, 1777940, 3644777, 7289554, 14579108, 18223885, 36447770, 72895540]

約数ペア:

[(1, 72895540), (2, 36447770), (4, 18223885), (5, 14579108), (10, 7289554), (20, 3644777), (41, 1777940), (82, 888970), (164, 444485), (205, 355588), (410, 177794), (820, 88897)]