203910820

素因数分解:

$2^2\times 5^1\times {\mathrm{2179}}^1\times {\mathrm{4679}}^1$

素因数の和:6867

約数の個数: 24

約数和(自身を含む): 428500800

約数和(自身を除く): 224589980

約数列:

[1, 2, 4, 5, 10, 20, 2179, 4358, 4679, 8716, 9358, 10895, 18716, 21790, 23395, 43580, 46790, 93580, 10195541, 20391082, 40782164, 50977705, 101955410, 203910820]

約数ペア:

[(1, 203910820), (2, 101955410), (4, 50977705), (5, 40782164), (10, 20391082), (20, 10195541), (2179, 93580), (4358, 46790), (4679, 43580), (8716, 23395), (9358, 21790), (10895, 18716)]