19550200

素因数分解:

$2^3\times 5^2\times {\mathrm{239}}^1\times {\mathrm{409}}^1$

素因数の和:664

約数の個数: 48

約数和(自身を含む): 45756000

約数和(自身を除く): 26205800

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 239, 409, 478, 818, 956, 1195, 1636, 1912, 2045, 2390, 3272, 4090, 4780, 5975, 8180, 9560, 10225, 11950, 16360, 20450, 23900, 40900, 47800, 81800, 97751, 195502, 391004, 488755, 782008, 977510, 1955020, 2443775, 3910040, 4887550, 9775100, 19550200]

約数ペア:

[(1, 19550200), (2, 9775100), (4, 4887550), (5, 3910040), (8, 2443775), (10, 1955020), (20, 977510), (25, 782008), (40, 488755), (50, 391004), (100, 195502), (200, 97751), (239, 81800), (409, 47800), (478, 40900), (818, 23900), (956, 20450), (1195, 16360), (1636, 11950), (1912, 10225), (2045, 9560), (2390, 8180), (3272, 5975), (4090, 4780)]