89980400

素因数分解:

$2^4\times 5^2\times {\mathrm{224951}}^1$

素因数の和:224969

約数の個数: 30

約数和(自身を含む): 216178872

約数和(自身を除く): 126198472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 224951, 449902, 899804, 1124755, 1799608, 2249510, 3599216, 4499020, 5623775, 8998040, 11247550, 17996080, 22495100, 44990200, 89980400]

約数ペア:

[(1, 89980400), (2, 44990200), (4, 22495100), (5, 17996080), (8, 11247550), (10, 8998040), (16, 5623775), (20, 4499020), (25, 3599216), (40, 2249510), (50, 1799608), (80, 1124755), (100, 899804), (200, 449902), (400, 224951)]