8400620

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{2819}}^1$

素因数の和:2977

約数の個数: 24

約数和(自身を含む): 17766000

約数和(自身を除く): 9365380

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2819, 2980, 5638, 11276, 14095, 28190, 56380, 420031, 840062, 1680124, 2100155, 4200310, 8400620]

約数ペア:

[(1, 8400620), (2, 4200310), (4, 2100155), (5, 1680124), (10, 840062), (20, 420031), (149, 56380), (298, 28190), (596, 14095), (745, 11276), (1490, 5638), (2819, 2980)]