20382620

素因数分解:

$2^2\times 5^1\times {\mathrm{379}}^1\times {\mathrm{2689}}^1$

素因数の和:3077

約数の個数: 24

約数和(自身を含む): 42932400

約数和(自身を除く): 22549780

約数列:

[1, 2, 4, 5, 10, 20, 379, 758, 1516, 1895, 2689, 3790, 5378, 7580, 10756, 13445, 26890, 53780, 1019131, 2038262, 4076524, 5095655, 10191310, 20382620]

約数ペア:

[(1, 20382620), (2, 10191310), (4, 5095655), (5, 4076524), (10, 2038262), (20, 1019131), (379, 53780), (758, 26890), (1516, 13445), (1895, 10756), (2689, 7580), (3790, 5378)]