20046580

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{7211}}^1$

素因数の和:7359

約数の個数: 24

約数和(自身を含む): 42406560

約数和(自身を除く): 22359980

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 7211, 14422, 28844, 36055, 72110, 144220, 1002329, 2004658, 4009316, 5011645, 10023290, 20046580]

約数ペア:

[(1, 20046580), (2, 10023290), (4, 5011645), (5, 4009316), (10, 2004658), (20, 1002329), (139, 144220), (278, 72110), (556, 36055), (695, 28844), (1390, 14422), (2780, 7211)]