12611920

素因数分解:

$2^4\times 5^1\times {\mathrm{157649}}^1$

素因数の和:157662

約数の個数: 20

約数和(自身を含む): 29322900

約数和(自身を除く): 16710980

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 157649, 315298, 630596, 788245, 1261192, 1576490, 2522384, 3152980, 6305960, 12611920]

約数ペア:

[(1, 12611920), (2, 6305960), (4, 3152980), (5, 2522384), (8, 1576490), (10, 1261192), (16, 788245), (20, 630596), (40, 315298), (80, 157649)]