64964360

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{7283}}^1$

素因数の和:7517

約数の個数: 32

約数和(自身を含む): 146845440

約数和(自身を除く): 81881080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 446, 892, 1115, 1784, 2230, 4460, 7283, 8920, 14566, 29132, 36415, 58264, 72830, 145660, 291320, 1624109, 3248218, 6496436, 8120545, 12992872, 16241090, 32482180, 64964360]

約数ペア:

[(1, 64964360), (2, 32482180), (4, 16241090), (5, 12992872), (8, 8120545), (10, 6496436), (20, 3248218), (40, 1624109), (223, 291320), (446, 145660), (892, 72830), (1115, 58264), (1784, 36415), (2230, 29132), (4460, 14566), (7283, 8920)]