25381780

素因数分解:

$2^2\times 5^1\times {\mathrm{457}}^1\times {\mathrm{2777}}^1$

素因数の和:3243

約数の個数: 24

約数和(自身を含む): 53437608

約数和(自身を除く): 28055828

約数列:

[1, 2, 4, 5, 10, 20, 457, 914, 1828, 2285, 2777, 4570, 5554, 9140, 11108, 13885, 27770, 55540, 1269089, 2538178, 5076356, 6345445, 12690890, 25381780]

約数ペア:

[(1, 25381780), (2, 12690890), (4, 6345445), (5, 5076356), (10, 2538178), (20, 1269089), (457, 55540), (914, 27770), (1828, 13885), (2285, 11108), (2777, 9140), (4570, 5554)]