61748920

素因数分解:

$2^3\times 5^1\times {\mathrm{521}}^1\times {\mathrm{2963}}^1$

素因数の和:3495

約数の個数: 32

約数和(自身を含む): 139248720

約数和(自身を除く): 77499800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 521, 1042, 2084, 2605, 2963, 4168, 5210, 5926, 10420, 11852, 14815, 20840, 23704, 29630, 59260, 118520, 1543723, 3087446, 6174892, 7718615, 12349784, 15437230, 30874460, 61748920]

約数ペア:

[(1, 61748920), (2, 30874460), (4, 15437230), (5, 12349784), (8, 7718615), (10, 6174892), (20, 3087446), (40, 1543723), (521, 118520), (1042, 59260), (2084, 29630), (2605, 23704), (2963, 20840), (4168, 14815), (5210, 11852), (5926, 10420)]