20412145

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{4423}}^1$

素因数の和:4512

約数の個数: 16

約数和(自身を含む): 26756352

約数和(自身を除く): 6344207

約数列:

[1, 5, 13, 65, 71, 355, 923, 4423, 4615, 22115, 57499, 287495, 314033, 1570165, 4082429, 20412145]

約数ペア:

[(1, 20412145), (5, 4082429), (13, 1570165), (65, 314033), (71, 287495), (355, 57499), (923, 22115), (4423, 4615)]