81249580

素因数分解:

$2^2\times 5^1\times {\mathrm{1667}}^1\times {\mathrm{2437}}^1$

素因数の和:4113

約数の個数: 24

約数和(自身を含む): 170796528

約数和(自身を除く): 89546948

約数列:

[1, 2, 4, 5, 10, 20, 1667, 2437, 3334, 4874, 6668, 8335, 9748, 12185, 16670, 24370, 33340, 48740, 4062479, 8124958, 16249916, 20312395, 40624790, 81249580]

約数ペア:

[(1, 81249580), (2, 40624790), (4, 20312395), (5, 16249916), (10, 8124958), (20, 4062479), (1667, 48740), (2437, 33340), (3334, 24370), (4874, 16670), (6668, 12185), (8335, 9748)]