65041640

素因数分解:

$2^3\times 5^1\times {\mathrm{521}}^1\times {\mathrm{3121}}^1$

素因数の和:3653

約数の個数: 32

約数和(自身を含む): 146671560

約数和(自身を除く): 81629920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 521, 1042, 2084, 2605, 3121, 4168, 5210, 6242, 10420, 12484, 15605, 20840, 24968, 31210, 62420, 124840, 1626041, 3252082, 6504164, 8130205, 13008328, 16260410, 32520820, 65041640]

約数ペア:

[(1, 65041640), (2, 32520820), (4, 16260410), (5, 13008328), (8, 8130205), (10, 6504164), (20, 3252082), (40, 1626041), (521, 124840), (1042, 62420), (2084, 31210), (2605, 24968), (3121, 20840), (4168, 15605), (5210, 12484), (6242, 10420)]