2112820

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{709}}^1$

素因数の和:867

約数の個数: 24

約数和(自身を含む): 4473000

約数和(自身を除く): 2360180

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 709, 745, 1418, 1490, 2836, 2980, 3545, 7090, 14180, 105641, 211282, 422564, 528205, 1056410, 2112820]

約数ペア:

[(1, 2112820), (2, 1056410), (4, 528205), (5, 422564), (10, 211282), (20, 105641), (149, 14180), (298, 7090), (596, 3545), (709, 2980), (745, 2836), (1418, 1490)]