28283140

素因数分解:

$2^2\times 5^1\times {\mathrm{991}}^1\times {\mathrm{1427}}^1$

素因数の和:2427

約数の個数: 24

約数和(自身を含む): 59496192

約数和(自身を除く): 31213052

約数列:

[1, 2, 4, 5, 10, 20, 991, 1427, 1982, 2854, 3964, 4955, 5708, 7135, 9910, 14270, 19820, 28540, 1414157, 2828314, 5656628, 7070785, 14141570, 28283140]

約数ペア:

[(1, 28283140), (2, 14141570), (4, 7070785), (5, 5656628), (10, 2828314), (20, 1414157), (991, 28540), (1427, 19820), (1982, 14270), (2854, 9910), (3964, 7135), (4955, 5708)]