13138820

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{4409}}^1$

素因数の和:4567

約数の個数: 24

約数和(自身を含む): 27783000

約数和(自身を除く): 14644180

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 4409, 8818, 17636, 22045, 44090, 88180, 656941, 1313882, 2627764, 3284705, 6569410, 13138820]

約数ペア:

[(1, 13138820), (2, 6569410), (4, 3284705), (5, 2627764), (10, 1313882), (20, 656941), (149, 88180), (298, 44090), (596, 22045), (745, 17636), (1490, 8818), (2980, 4409)]