65604080

素因数分解:

$2^4\times 5^1\times {\mathrm{820051}}^1$

素因数の和:820064

約数の個数: 20

約数和(自身を含む): 152529672

約数和(自身を除く): 86925592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 820051, 1640102, 3280204, 4100255, 6560408, 8200510, 13120816, 16401020, 32802040, 65604080]

約数ペア:

[(1, 65604080), (2, 32802040), (4, 16401020), (5, 13120816), (8, 8200510), (10, 6560408), (16, 4100255), (20, 3280204), (40, 1640102), (80, 820051)]