20304220

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{13907}}^1$

素因数の和:13989

約数の個数: 24

約数和(自身を含む): 43226064

約数和(自身を除く): 22921844

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 13907, 27814, 55628, 69535, 139070, 278140, 1015211, 2030422, 4060844, 5076055, 10152110, 20304220]

約数ペア:

[(1, 20304220), (2, 10152110), (4, 5076055), (5, 4060844), (10, 2030422), (20, 1015211), (73, 278140), (146, 139070), (292, 69535), (365, 55628), (730, 27814), (1460, 13907)]