78077200

素因数分解:

$2^4\times 5^2\times {\mathrm{195193}}^1$

素因数の和:195211

約数の個数: 30

約数和(自身を含む): 187581434

約数和(自身を除く): 109504234

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 195193, 390386, 780772, 975965, 1561544, 1951930, 3123088, 3903860, 4879825, 7807720, 9759650, 15615440, 19519300, 39038600, 78077200]

約数ペア:

[(1, 78077200), (2, 39038600), (4, 19519300), (5, 15615440), (8, 9759650), (10, 7807720), (16, 4879825), (20, 3903860), (25, 3123088), (40, 1951930), (50, 1561544), (80, 975965), (100, 780772), (200, 390386), (400, 195193)]