978800

素因数分解:

$2^4\times 5^2\times {\mathrm{2447}}^1$

素因数の和:2465

約数の個数: 30

約数和(自身を含む): 2352528

約数和(自身を除く): 1373728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 2447, 4894, 9788, 12235, 19576, 24470, 39152, 48940, 61175, 97880, 122350, 195760, 244700, 489400, 978800]

約数ペア:

[(1, 978800), (2, 489400), (4, 244700), (5, 195760), (8, 122350), (10, 97880), (16, 61175), (20, 48940), (25, 39152), (40, 24470), (50, 19576), (80, 12235), (100, 9788), (200, 4894), (400, 2447)]