20028460

素因数分解:

$2^2\times 5^1\times {\mathrm{887}}^1\times {\mathrm{1129}}^1$

素因数の和:2025

約数の個数: 24

約数和(自身を含む): 42144480

約数和(自身を除く): 22116020

約数列:

[1, 2, 4, 5, 10, 20, 887, 1129, 1774, 2258, 3548, 4435, 4516, 5645, 8870, 11290, 17740, 22580, 1001423, 2002846, 4005692, 5007115, 10014230, 20028460]

約数ペア:

[(1, 20028460), (2, 10014230), (4, 5007115), (5, 4005692), (10, 2002846), (20, 1001423), (887, 22580), (1129, 17740), (1774, 11290), (2258, 8870), (3548, 5645), (4435, 4516)]