31894480

素因数分解:

$2^4\times 5^1\times {\mathrm{398681}}^1$

素因数の和:398694

約数の個数: 20

約数和(自身を含む): 74154852

約数和(自身を除く): 42260372

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 398681, 797362, 1594724, 1993405, 3189448, 3986810, 6378896, 7973620, 15947240, 31894480]

約数ペア:

[(1, 31894480), (2, 15947240), (4, 7973620), (5, 6378896), (8, 3986810), (10, 3189448), (16, 1993405), (20, 1594724), (40, 797362), (80, 398681)]