202261520

素因数分解:

$2^4\times 5^1\times {\mathrm{2528269}}^1$

素因数の和:2528282

約数の個数: 20

約数和(自身を含む): 470258220

約数和(自身を除く): 267996700

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2528269, 5056538, 10113076, 12641345, 20226152, 25282690, 40452304, 50565380, 101130760, 202261520]

約数ペア:

[(1, 202261520), (2, 101130760), (4, 50565380), (5, 40452304), (8, 25282690), (10, 20226152), (16, 12641345), (20, 10113076), (40, 5056538), (80, 2528269)]