31497820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{82889}}^1$

素因数の和:82917

約数の個数: 24

約数和(自身を含む): 69627600

約数和(自身を除く): 38129780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 82889, 165778, 331556, 414445, 828890, 1574891, 1657780, 3149782, 6299564, 7874455, 15748910, 31497820]

約数ペア:

[(1, 31497820), (2, 15748910), (4, 7874455), (5, 6299564), (10, 3149782), (19, 1657780), (20, 1574891), (38, 828890), (76, 414445), (95, 331556), (190, 165778), (380, 82889)]