61311280

素因数分解:

$2^4\times 5^1\times {\mathrm{521}}^1\times {\mathrm{1471}}^1$

素因数の和:2005

約数の個数: 40

約数和(自身を含む): 142919424

約数和(自身を除く): 81608144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 521, 1042, 1471, 2084, 2605, 2942, 4168, 5210, 5884, 7355, 8336, 10420, 11768, 14710, 20840, 23536, 29420, 41680, 58840, 117680, 766391, 1532782, 3065564, 3831955, 6131128, 7663910, 12262256, 15327820, 30655640, 61311280]

約数ペア:

[(1, 61311280), (2, 30655640), (4, 15327820), (5, 12262256), (8, 7663910), (10, 6131128), (16, 3831955), (20, 3065564), (40, 1532782), (80, 766391), (521, 117680), (1042, 58840), (1471, 41680), (2084, 29420), (2605, 23536), (2942, 20840), (4168, 14710), (5210, 11768), (5884, 10420), (7355, 8336)]