31121320

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{13187}}^1$

素因数の和:13257

約数の個数: 32

約数和(自身を含む): 71215200

約数和(自身を除く): 40093880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 118, 236, 295, 472, 590, 1180, 2360, 13187, 26374, 52748, 65935, 105496, 131870, 263740, 527480, 778033, 1556066, 3112132, 3890165, 6224264, 7780330, 15560660, 31121320]

約数ペア:

[(1, 31121320), (2, 15560660), (4, 7780330), (5, 6224264), (8, 3890165), (10, 3112132), (20, 1556066), (40, 778033), (59, 527480), (118, 263740), (236, 131870), (295, 105496), (472, 65935), (590, 52748), (1180, 26374), (2360, 13187)]