8181405

素因数分解:

$3^4\times 5^1\times {\mathrm{20201}}^1$

素因数の和:20218

約数の個数: 20

約数和(自身を含む): 14666652

約数和(自身を除く): 6485247

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 20201, 60603, 101005, 181809, 303015, 545427, 909045, 1636281, 2727135, 8181405]

約数ペア:

[(1, 8181405), (3, 2727135), (5, 1636281), (9, 909045), (15, 545427), (27, 303015), (45, 181809), (81, 101005), (135, 60603), (405, 20201)]