165957980

素因数分解:

$2^2\times 5^1\times {\mathrm{1621}}^1\times {\mathrm{5119}}^1$

素因数の和:6749

約数の個数: 24

約数和(自身を含む): 348794880

約数和(自身を除く): 182836900

約数列:

[1, 2, 4, 5, 10, 20, 1621, 3242, 5119, 6484, 8105, 10238, 16210, 20476, 25595, 32420, 51190, 102380, 8297899, 16595798, 33191596, 41489495, 82978990, 165957980]

約数ペア:

[(1, 165957980), (2, 82978990), (4, 41489495), (5, 33191596), (10, 16595798), (20, 8297899), (1621, 102380), (3242, 51190), (5119, 32420), (6484, 25595), (8105, 20476), (10238, 16210)]