858609980

素因数分解:

$2^2\times 5^1\times {\mathrm{1109}}^1\times {\mathrm{38711}}^1$

素因数の和:39829

約数の個数: 24

約数和(自身を含む): 1804753440

約数和(自身を除く): 946143460

約数列:

[1, 2, 4, 5, 10, 20, 1109, 2218, 4436, 5545, 11090, 22180, 38711, 77422, 154844, 193555, 387110, 774220, 42930499, 85860998, 171721996, 214652495, 429304990, 858609980]

約数ペア:

[(1, 858609980), (2, 429304990), (4, 214652495), (5, 171721996), (10, 85860998), (20, 42930499), (1109, 774220), (2218, 387110), (4436, 193555), (5545, 154844), (11090, 77422), (22180, 38711)]