20186500

素因数分解:

$2^2\times 5^3\times {\mathrm{47}}^1\times {\mathrm{859}}^1$

素因数の和:925

約数の個数: 48

約数和(自身を含む): 45077760

約数和(自身を除く): 24891260

約数列:

[1, 2, 4, 5, 10, 20, 25, 47, 50, 94, 100, 125, 188, 235, 250, 470, 500, 859, 940, 1175, 1718, 2350, 3436, 4295, 4700, 5875, 8590, 11750, 17180, 21475, 23500, 40373, 42950, 80746, 85900, 107375, 161492, 201865, 214750, 403730, 429500, 807460, 1009325, 2018650, 4037300, 5046625, 10093250, 20186500]

約数ペア:

[(1, 20186500), (2, 10093250), (4, 5046625), (5, 4037300), (10, 2018650), (20, 1009325), (25, 807460), (47, 429500), (50, 403730), (94, 214750), (100, 201865), (125, 161492), (188, 107375), (235, 85900), (250, 80746), (470, 42950), (500, 40373), (859, 23500), (940, 21475), (1175, 17180), (1718, 11750), (2350, 8590), (3436, 5875), (4295, 4700)]