20855185

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{4519}}^1$

素因数の和:4608

約数の個数: 16

約数和(自身を含む): 27336960

約数和(自身を除く): 6481775

約数列:

[1, 5, 13, 65, 71, 355, 923, 4519, 4615, 22595, 58747, 293735, 320849, 1604245, 4171037, 20855185]

約数ペア:

[(1, 20855185), (5, 4171037), (13, 1604245), (65, 320849), (71, 293735), (355, 58747), (923, 22595), (4519, 4615)]