20258800

素因数分解:

$2^4\times 5^2\times {\mathrm{50647}}^1$

素因数の和:50665

約数の個数: 30

約数和(自身を含む): 48672728

約数和(自身を除く): 28413928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 50647, 101294, 202588, 253235, 405176, 506470, 810352, 1012940, 1266175, 2025880, 2532350, 4051760, 5064700, 10129400, 20258800]

約数ペア:

[(1, 20258800), (2, 10129400), (4, 5064700), (5, 4051760), (8, 2532350), (10, 2025880), (16, 1266175), (20, 1012940), (25, 810352), (40, 506470), (50, 405176), (80, 253235), (100, 202588), (200, 101294), (400, 50647)]