72091640

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{11057}}^1$

素因数の和:11231

約数の個数: 32

約数和(自身を含む): 163216080

約数和(自身を除く): 91124440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 11057, 22114, 44228, 55285, 88456, 110570, 221140, 442280, 1802291, 3604582, 7209164, 9011455, 14418328, 18022910, 36045820, 72091640]

約数ペア:

[(1, 72091640), (2, 36045820), (4, 18022910), (5, 14418328), (8, 9011455), (10, 7209164), (20, 3604582), (40, 1802291), (163, 442280), (326, 221140), (652, 110570), (815, 88456), (1304, 55285), (1630, 44228), (3260, 22114), (6520, 11057)]