31596280

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{7669}}^1$

素因数の和:7783

約数の個数: 32

約数和(自身を含む): 71791200

約数和(自身を除く): 40194920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 7669, 15338, 30676, 38345, 61352, 76690, 153380, 306760, 789907, 1579814, 3159628, 3949535, 6319256, 7899070, 15798140, 31596280]

約数ペア:

[(1, 31596280), (2, 15798140), (4, 7899070), (5, 6319256), (8, 3949535), (10, 3159628), (20, 1579814), (40, 789907), (103, 306760), (206, 153380), (412, 76690), (515, 61352), (824, 38345), (1030, 30676), (2060, 15338), (4120, 7669)]