31042040

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{4943}}^1$

素因数の和:5111

約数の個数: 32

約数和(自身を含む): 70303680

約数和(自身を除く): 39261640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 4943, 6280, 9886, 19772, 24715, 39544, 49430, 98860, 197720, 776051, 1552102, 3104204, 3880255, 6208408, 7760510, 15521020, 31042040]

約数ペア:

[(1, 31042040), (2, 15521020), (4, 7760510), (5, 6208408), (8, 3880255), (10, 3104204), (20, 1552102), (40, 776051), (157, 197720), (314, 98860), (628, 49430), (785, 39544), (1256, 24715), (1570, 19772), (3140, 9886), (4943, 6280)]