20454075

素因数分解:

$3^2\times 5^2\times {\mathrm{90907}}^1$

素因数の和:90923

約数の個数: 18

約数和(自身を含む): 36635924

約数和(自身を除く): 16181849

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 90907, 272721, 454535, 818163, 1363605, 2272675, 4090815, 6818025, 20454075]

約数ペア:

[(1, 20454075), (3, 6818025), (5, 4090815), (9, 2272675), (15, 1363605), (25, 818163), (45, 454535), (75, 272721), (225, 90907)]