31078220

素因数分解:

$2^2\times 5^1\times {\mathrm{421}}^1\times {\mathrm{3691}}^1$

素因数の和:4121

約数の個数: 24

約数和(自身を含む): 65437008

約数和(自身を除く): 34358788

約数列:

[1, 2, 4, 5, 10, 20, 421, 842, 1684, 2105, 3691, 4210, 7382, 8420, 14764, 18455, 36910, 73820, 1553911, 3107822, 6215644, 7769555, 15539110, 31078220]

約数ペア:

[(1, 31078220), (2, 15539110), (4, 7769555), (5, 6215644), (10, 3107822), (20, 1553911), (421, 73820), (842, 36910), (1684, 18455), (2105, 14764), (3691, 8420), (4210, 7382)]