79168400

素因数分解:

$2^4\times 5^2\times {\mathrm{197921}}^1$

素因数の和:197939

約数の個数: 30

約数和(自身を含む): 190203042

約数和(自身を除く): 111034642

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 197921, 395842, 791684, 989605, 1583368, 1979210, 3166736, 3958420, 4948025, 7916840, 9896050, 15833680, 19792100, 39584200, 79168400]

約数ペア:

[(1, 79168400), (2, 39584200), (4, 19792100), (5, 15833680), (8, 9896050), (10, 7916840), (16, 4948025), (20, 3958420), (25, 3166736), (40, 1979210), (50, 1583368), (80, 989605), (100, 791684), (200, 395842), (400, 197921)]