72495405

素因数分解:

$3^6\times 5^1\times {\mathrm{19889}}^1$

素因数の和:19912

約数の個数: 28

約数和(自身を含む): 130438620

約数和(自身を除く): 57943215

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 729, 1215, 3645, 19889, 59667, 99445, 179001, 298335, 537003, 895005, 1611009, 2685015, 4833027, 8055045, 14499081, 24165135, 72495405]

約数ペア:

[(1, 72495405), (3, 24165135), (5, 14499081), (9, 8055045), (15, 4833027), (27, 2685015), (45, 1611009), (81, 895005), (135, 537003), (243, 298335), (405, 179001), (729, 99445), (1215, 59667), (3645, 19889)]