4086980

素因数分解:

$2^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{1129}}^1$

素因数の和:1319

約数の個数: 24

約数和(自身を含む): 8637720

約数和(自身を除く): 4550740

約数列:

[1, 2, 4, 5, 10, 20, 181, 362, 724, 905, 1129, 1810, 2258, 3620, 4516, 5645, 11290, 22580, 204349, 408698, 817396, 1021745, 2043490, 4086980]

約数ペア:

[(1, 4086980), (2, 2043490), (4, 1021745), (5, 817396), (10, 408698), (20, 204349), (181, 22580), (362, 11290), (724, 5645), (905, 4516), (1129, 3620), (1810, 2258)]