64674440

素因数分解:

$2^3\times 5^1\times {\mathrm{1616861}}^1$

素因数の和:1616872

約数の個数: 16

約数和(自身を含む): 145517580

約数和(自身を除く): 80843140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1616861, 3233722, 6467444, 8084305, 12934888, 16168610, 32337220, 64674440]

約数ペア:

[(1, 64674440), (2, 32337220), (4, 16168610), (5, 12934888), (8, 8084305), (10, 6467444), (20, 3233722), (40, 1616861)]