64680076360

素因数分解:

$2^3\times 5^1\times {\mathrm{1617001909}}^1$

素因数の和:1617001920

約数の個数: 16

約数和(自身を含む): 145530171900

約数和(自身を除く): 80850095540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1617001909, 3234003818, 6468007636, 8085009545, 12936015272, 16170019090, 32340038180, 64680076360]

約数ペア:

[(1, 64680076360), (2, 32340038180), (4, 16170019090), (5, 12936015272), (8, 8085009545), (10, 6468007636), (20, 3234003818), (40, 1617001909)]