25041220

素因数分解:

$2^2\times 5^1\times {\mathrm{1109}}^1\times {\mathrm{1129}}^1$

素因数の和:2247

約数の個数: 24

約数和(自身を含む): 52680600

約数和(自身を除く): 27639380

約数列:

[1, 2, 4, 5, 10, 20, 1109, 1129, 2218, 2258, 4436, 4516, 5545, 5645, 11090, 11290, 22180, 22580, 1252061, 2504122, 5008244, 6260305, 12520610, 25041220]

約数ペア:

[(1, 25041220), (2, 12520610), (4, 6260305), (5, 5008244), (10, 2504122), (20, 1252061), (1109, 22580), (1129, 22180), (2218, 11290), (2258, 11090), (4436, 5645), (4516, 5545)]