20674180

素因数分解:

$2^2\times 5^1\times {\mathrm{797}}^1\times {\mathrm{1297}}^1$

素因数の和:2103

約数の個数: 24

約数和(自身を含む): 43503768

約数和(自身を除く): 22829588

約数列:

[1, 2, 4, 5, 10, 20, 797, 1297, 1594, 2594, 3188, 3985, 5188, 6485, 7970, 12970, 15940, 25940, 1033709, 2067418, 4134836, 5168545, 10337090, 20674180]

約数ペア:

[(1, 20674180), (2, 10337090), (4, 5168545), (5, 4134836), (10, 2067418), (20, 1033709), (797, 25940), (1297, 15940), (1594, 12970), (2594, 7970), (3188, 6485), (3985, 5188)]