51637580

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{19709}}^1$

素因数の和:19849

約数の個数: 24

約数和(自身を含む): 109272240

約数和(自身を除く): 57634660

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 19709, 39418, 78836, 98545, 197090, 394180, 2581879, 5163758, 10327516, 12909395, 25818790, 51637580]

約数ペア:

[(1, 51637580), (2, 25818790), (4, 12909395), (5, 10327516), (10, 5163758), (20, 2581879), (131, 394180), (262, 197090), (524, 98545), (655, 78836), (1310, 39418), (2620, 19709)]