20524220

素因数分解:

$2^2\times 5^1\times {\mathrm{431}}^1\times {\mathrm{2381}}^1$

素因数の和:2821

約数の個数: 24

約数和(自身を含む): 43219008

約数和(自身を除く): 22694788

約数列:

[1, 2, 4, 5, 10, 20, 431, 862, 1724, 2155, 2381, 4310, 4762, 8620, 9524, 11905, 23810, 47620, 1026211, 2052422, 4104844, 5131055, 10262110, 20524220]

約数ペア:

[(1, 20524220), (2, 10262110), (4, 5131055), (5, 4104844), (10, 2052422), (20, 1026211), (431, 47620), (862, 23810), (1724, 11905), (2155, 9524), (2381, 8620), (4310, 4762)]