64757740

素因数分解:

$2^2\times 5^1\times {\mathrm{443}}^1\times {\mathrm{7309}}^1$

素因数の和:7761

約数の個数: 24

約数和(自身を含む): 136316880

約数和(自身を除く): 71559140

約数列:

[1, 2, 4, 5, 10, 20, 443, 886, 1772, 2215, 4430, 7309, 8860, 14618, 29236, 36545, 73090, 146180, 3237887, 6475774, 12951548, 16189435, 32378870, 64757740]

約数ペア:

[(1, 64757740), (2, 32378870), (4, 16189435), (5, 12951548), (10, 6475774), (20, 3237887), (443, 146180), (886, 73090), (1772, 36545), (2215, 29236), (4430, 14618), (7309, 8860)]