72878560

素因数分解:

$2^5\times 5^1\times {\mathrm{455491}}^1$

素因数の和:455506

約数の個数: 24

約数和(自身を含む): 172175976

約数和(自身を除く): 99297416

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 455491, 910982, 1821964, 2277455, 3643928, 4554910, 7287856, 9109820, 14575712, 18219640, 36439280, 72878560]

約数ペア:

[(1, 72878560), (2, 36439280), (4, 18219640), (5, 14575712), (8, 9109820), (10, 7287856), (16, 4554910), (20, 3643928), (32, 2277455), (40, 1821964), (80, 910982), (160, 455491)]