180407120

素因数分解:

$2^4\times 5^1\times {\mathrm{2255089}}^1$

素因数の和:2255102

約数の個数: 20

約数和(自身を含む): 419446740

約数和(自身を除く): 239039620

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2255089, 4510178, 9020356, 11275445, 18040712, 22550890, 36081424, 45101780, 90203560, 180407120]

約数ペア:

[(1, 180407120), (2, 90203560), (4, 45101780), (5, 36081424), (8, 22550890), (10, 18040712), (16, 11275445), (20, 9020356), (40, 4510178), (80, 2255089)]