87982420

素因数分解:

$2^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{19727}}^1$

素因数の和:19959

約数の個数: 24

約数和(自身を含む): 185601024

約数和(自身を除く): 97618604

約数列:

[1, 2, 4, 5, 10, 20, 223, 446, 892, 1115, 2230, 4460, 19727, 39454, 78908, 98635, 197270, 394540, 4399121, 8798242, 17596484, 21995605, 43991210, 87982420]

約数ペア:

[(1, 87982420), (2, 43991210), (4, 21995605), (5, 17596484), (10, 8798242), (20, 4399121), (223, 394540), (446, 197270), (892, 98635), (1115, 78908), (2230, 39454), (4460, 19727)]