489400

素因数分解:

$2^3\times 5^2\times {\mathrm{2447}}^1$

素因数の和:2463

約数の個数: 24

約数和(自身を含む): 1138320

約数和(自身を除く): 648920

約数列:

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

約数ペア:

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