72421460

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{84211}}^1$

素因数の和:84263

約数の個数: 24

約数和(自身を含む): 155623776

約数和(自身を除く): 83202316

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 84211, 168422, 336844, 421055, 842110, 1684220, 3621073, 7242146, 14484292, 18105365, 36210730, 72421460]

約数ペア:

[(1, 72421460), (2, 36210730), (4, 18105365), (5, 14484292), (10, 7242146), (20, 3621073), (43, 1684220), (86, 842110), (172, 421055), (215, 336844), (430, 168422), (860, 84211)]