20895260

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{22229}}^1$

素因数の和:22285

約数の個数: 24

約数和(自身を含む): 44815680

約数和(自身を除く): 23920420

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 22229, 44458, 88916, 111145, 222290, 444580, 1044763, 2089526, 4179052, 5223815, 10447630, 20895260]

約数ペア:

[(1, 20895260), (2, 10447630), (4, 5223815), (5, 4179052), (10, 2089526), (20, 1044763), (47, 444580), (94, 222290), (188, 111145), (235, 88916), (470, 44458), (940, 22229)]