187664980

素因数分解:

$2^2\times 5^1\times {\mathrm{1109}}^1\times {\mathrm{8461}}^1$

素因数の和:9579

約数の個数: 24

約数和(自身を含む): 394498440

約数和(自身を除く): 206833460

約数列:

[1, 2, 4, 5, 10, 20, 1109, 2218, 4436, 5545, 8461, 11090, 16922, 22180, 33844, 42305, 84610, 169220, 9383249, 18766498, 37532996, 46916245, 93832490, 187664980]

約数ペア:

[(1, 187664980), (2, 93832490), (4, 46916245), (5, 37532996), (10, 18766498), (20, 9383249), (1109, 169220), (2218, 84610), (4436, 42305), (5545, 33844), (8461, 22180), (11090, 16922)]