72255640

素因数分解:

$2^3\times 5^1\times {\mathrm{829}}^1\times {\mathrm{2179}}^1$

素因数の和:3019

約数の個数: 32

約数和(自身を含む): 162846000

約数和(自身を除く): 90590360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 829, 1658, 2179, 3316, 4145, 4358, 6632, 8290, 8716, 10895, 16580, 17432, 21790, 33160, 43580, 87160, 1806391, 3612782, 7225564, 9031955, 14451128, 18063910, 36127820, 72255640]

約数ペア:

[(1, 72255640), (2, 36127820), (4, 18063910), (5, 14451128), (8, 9031955), (10, 7225564), (20, 3612782), (40, 1806391), (829, 87160), (1658, 43580), (2179, 33160), (3316, 21790), (4145, 17432), (4358, 16580), (6632, 10895), (8290, 8716)]