72757780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{88729}}^1$

素因数の和:88779

約数の個数: 24

約数和(自身を含む): 156519720

約数和(自身を除く): 83761940

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 88729, 177458, 354916, 443645, 887290, 1774580, 3637889, 7275778, 14551556, 18189445, 36378890, 72757780]

約数ペア:

[(1, 72757780), (2, 36378890), (4, 18189445), (5, 14551556), (10, 7275778), (20, 3637889), (41, 1774580), (82, 887290), (164, 443645), (205, 354916), (410, 177458), (820, 88729)]