920565

素因数分解:

$3^4\times 5^1\times {\mathrm{2273}}^1$

素因数の和:2290

約数の個数: 20

約数和(自身を含む): 1650924

約数和(自身を除く): 730359

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 2273, 6819, 11365, 20457, 34095, 61371, 102285, 184113, 306855, 920565]

約数ペア:

[(1, 920565), (3, 306855), (5, 184113), (9, 102285), (15, 61371), (27, 34095), (45, 20457), (81, 11365), (135, 6819), (405, 2273)]