64906180

素因数分解:

$2^2\times 5^1\times {\mathrm{521}}^1\times {\mathrm{6229}}^1$

素因数の和:6759

約数の個数: 24

約数和(自身を含む): 136586520

約数和(自身を除く): 71680340

約数列:

[1, 2, 4, 5, 10, 20, 521, 1042, 2084, 2605, 5210, 6229, 10420, 12458, 24916, 31145, 62290, 124580, 3245309, 6490618, 12981236, 16226545, 32453090, 64906180]

約数ペア:

[(1, 64906180), (2, 32453090), (4, 16226545), (5, 12981236), (10, 6490618), (20, 3245309), (521, 124580), (1042, 62290), (2084, 31145), (2605, 24916), (5210, 12458), (6229, 10420)]