81731600

素因数分解:

$2^4\times 5^2\times {\mathrm{204329}}^1$

素因数の和:204347

約数の個数: 30

約数和(自身を含む): 196361130

約数和(自身を除く): 114629530

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 204329, 408658, 817316, 1021645, 1634632, 2043290, 3269264, 4086580, 5108225, 8173160, 10216450, 16346320, 20432900, 40865800, 81731600]

約数ペア:

[(1, 81731600), (2, 40865800), (4, 20432900), (5, 16346320), (8, 10216450), (10, 8173160), (16, 5108225), (20, 4086580), (25, 3269264), (40, 2043290), (50, 1634632), (80, 1021645), (100, 817316), (200, 408658), (400, 204329)]