81059620

素因数分解:

$2^2\times 5^1\times {\mathrm{829}}^1\times {\mathrm{4889}}^1$

素因数の和:5727

約数の個数: 24

約数和(自身を含む): 170465400

約数和(自身を除く): 89405780

約数列:

[1, 2, 4, 5, 10, 20, 829, 1658, 3316, 4145, 4889, 8290, 9778, 16580, 19556, 24445, 48890, 97780, 4052981, 8105962, 16211924, 20264905, 40529810, 81059620]

約数ペア:

[(1, 81059620), (2, 40529810), (4, 20264905), (5, 16211924), (10, 8105962), (20, 4052981), (829, 97780), (1658, 48890), (3316, 24445), (4145, 19556), (4889, 16580), (8290, 9778)]