81628155

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{28793}}^1$

素因数の和:28817

約数の個数: 40

約数和(自身を含む): 167235552

約数和(自身を除く): 85607397

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 81, 105, 135, 189, 315, 405, 567, 945, 2835, 28793, 86379, 143965, 201551, 259137, 431895, 604653, 777411, 1007755, 1295685, 1813959, 2332233, 3023265, 3887055, 5441877, 9069795, 11661165, 16325631, 27209385, 81628155]

約数ペア:

[(1, 81628155), (3, 27209385), (5, 16325631), (7, 11661165), (9, 9069795), (15, 5441877), (21, 3887055), (27, 3023265), (35, 2332233), (45, 1813959), (63, 1295685), (81, 1007755), (105, 777411), (135, 604653), (189, 431895), (315, 259137), (405, 201551), (567, 143965), (945, 86379), (2835, 28793)]