28505087180

素因数分解:

$2^2\times 5^1\times {\mathrm{1425254359}}^1$

素因数の和:1425254368

約数の個数: 12

約数和(自身を含む): 59860683120

約数和(自身を除く): 31355595940

約数列:

[1, 2, 4, 5, 10, 20, 1425254359, 2850508718, 5701017436, 7126271795, 14252543590, 28505087180]

約数ペア:

[(1, 28505087180), (2, 14252543590), (4, 7126271795), (5, 5701017436), (10, 2850508718), (20, 1425254359)]