18904940

素因数分解:

$2^2\times 5^1\times {\mathrm{359}}^1\times {\mathrm{2633}}^1$

素因数の和:3001

約数の個数: 24

約数和(自身を含む): 39826080

約数和(自身を除く): 20921140

約数列:

[1, 2, 4, 5, 10, 20, 359, 718, 1436, 1795, 2633, 3590, 5266, 7180, 10532, 13165, 26330, 52660, 945247, 1890494, 3780988, 4726235, 9452470, 18904940]

約数ペア:

[(1, 18904940), (2, 9452470), (4, 4726235), (5, 3780988), (10, 1890494), (20, 945247), (359, 52660), (718, 26330), (1436, 13165), (1795, 10532), (2633, 7180), (3590, 5266)]