78901660

素因数分解:

$2^2\times 5^1\times {\mathrm{1039}}^1\times {\mathrm{3797}}^1$

素因数の和:4845

約数の個数: 24

約数和(自身を含む): 165896640

約数和(自身を除く): 86994980

約数列:

[1, 2, 4, 5, 10, 20, 1039, 2078, 3797, 4156, 5195, 7594, 10390, 15188, 18985, 20780, 37970, 75940, 3945083, 7890166, 15780332, 19725415, 39450830, 78901660]

約数ペア:

[(1, 78901660), (2, 39450830), (4, 19725415), (5, 15780332), (10, 7890166), (20, 3945083), (1039, 75940), (2078, 37970), (3797, 20780), (4156, 18985), (5195, 15188), (7594, 10390)]