81833740

素因数分解:

$2^2\times 5^1\times {\mathrm{1609}}^1\times {\mathrm{2543}}^1$

素因数の和:4161

約数の個数: 24

約数和(自身を含む): 172025280

約数和(自身を除く): 90191540

約数列:

[1, 2, 4, 5, 10, 20, 1609, 2543, 3218, 5086, 6436, 8045, 10172, 12715, 16090, 25430, 32180, 50860, 4091687, 8183374, 16366748, 20458435, 40916870, 81833740]

約数ペア:

[(1, 81833740), (2, 40916870), (4, 20458435), (5, 16366748), (10, 8183374), (20, 4091687), (1609, 50860), (2543, 32180), (3218, 25430), (5086, 16090), (6436, 12715), (8045, 10172)]