25213780

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{8461}}^1$

素因数の和:8619

約数の個数: 24

約数和(自身を含む): 53310600

約数和(自身を除く): 28096820

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 8461, 16922, 33844, 42305, 84610, 169220, 1260689, 2521378, 5042756, 6303445, 12606890, 25213780]

約数ペア:

[(1, 25213780), (2, 12606890), (4, 6303445), (5, 5042756), (10, 2521378), (20, 1260689), (149, 169220), (298, 84610), (596, 42305), (745, 33844), (1490, 16922), (2980, 8461)]