81450405

素因数分解:

$3^2\times 5^1\times {\mathrm{271}}^1\times {\mathrm{6679}}^1$

素因数の和:6961

約数の個数: 24

約数和(自身を含む): 141722880

約数和(自身を除く): 60272475

約数列:

[1, 3, 5, 9, 15, 45, 271, 813, 1355, 2439, 4065, 6679, 12195, 20037, 33395, 60111, 100185, 300555, 1810009, 5430027, 9050045, 16290081, 27150135, 81450405]

約数ペア:

[(1, 81450405), (3, 27150135), (5, 16290081), (9, 9050045), (15, 5430027), (45, 1810009), (271, 300555), (813, 100185), (1355, 60111), (2439, 33395), (4065, 20037), (6679, 12195)]