138372500

素因数分解:

$2^2\times 5^4\times 7^1\times {\mathrm{7907}}^1$

素因数の和:7938

約数の個数: 60

約数和(自身を含む): 345864288

約数和(自身を除く): 207491788

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 125, 140, 175, 250, 350, 500, 625, 700, 875, 1250, 1750, 2500, 3500, 4375, 7907, 8750, 15814, 17500, 31628, 39535, 55349, 79070, 110698, 158140, 197675, 221396, 276745, 395350, 553490, 790700, 988375, 1106980, 1383725, 1976750, 2767450, 3953500, 4941875, 5534900, 6918625, 9883750, 13837250, 19767500, 27674500, 34593125, 69186250, 138372500]

約数ペア:

[(1, 138372500), (2, 69186250), (4, 34593125), (5, 27674500), (7, 19767500), (10, 13837250), (14, 9883750), (20, 6918625), (25, 5534900), (28, 4941875), (35, 3953500), (50, 2767450), (70, 1976750), (100, 1383725), (125, 1106980), (140, 988375), (175, 790700), (250, 553490), (350, 395350), (500, 276745), (625, 221396), (700, 197675), (875, 158140), (1250, 110698), (1750, 79070), (2500, 55349), (3500, 39535), (4375, 31628), (7907, 17500), (8750, 15814)]