19180400

素因数分解:

$2^4\times 5^2\times {\mathrm{47951}}^1$

素因数の和:47969

約数の個数: 30

約数和(自身を含む): 46081872

約数和(自身を除く): 26901472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 47951, 95902, 191804, 239755, 383608, 479510, 767216, 959020, 1198775, 1918040, 2397550, 3836080, 4795100, 9590200, 19180400]

約数ペア:

[(1, 19180400), (2, 9590200), (4, 4795100), (5, 3836080), (8, 2397550), (10, 1918040), (16, 1198775), (20, 959020), (25, 767216), (40, 479510), (50, 383608), (80, 239755), (100, 191804), (200, 95902), (400, 47951)]