80390775

素因数分解:

$3^1\times 5^2\times {\mathrm{197}}^1\times {\mathrm{5441}}^1$

素因数の和:5651

約数の個数: 24

約数和(自身を含む): 133611984

約数和(自身を除く): 53221209

約数列:

[1, 3, 5, 15, 25, 75, 197, 591, 985, 2955, 4925, 5441, 14775, 16323, 27205, 81615, 136025, 408075, 1071877, 3215631, 5359385, 16078155, 26796925, 80390775]

約数ペア:

[(1, 80390775), (3, 26796925), (5, 16078155), (15, 5359385), (25, 3215631), (75, 1071877), (197, 408075), (591, 136025), (985, 81615), (2955, 27205), (4925, 16323), (5441, 14775)]