80159780

素因数分解:

$2^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{22391}}^1$

素因数の和:22579

約数の個数: 24

約数和(自身を含む): 169283520

約数和(自身を除く): 89123740

約数列:

[1, 2, 4, 5, 10, 20, 179, 358, 716, 895, 1790, 3580, 22391, 44782, 89564, 111955, 223910, 447820, 4007989, 8015978, 16031956, 20039945, 40079890, 80159780]

約数ペア:

[(1, 80159780), (2, 40079890), (4, 20039945), (5, 16031956), (10, 8015978), (20, 4007989), (179, 447820), (358, 223910), (716, 111955), (895, 89564), (1790, 44782), (3580, 22391)]