1999858460

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{199}}^1\times {\mathrm{10691}}^1$

素因数の和:10946

約数の個数: 48

約数和(自身を含む): 4311014400

約数和(自身を除く): 2311155940

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 199, 235, 398, 470, 796, 940, 995, 1990, 3980, 9353, 10691, 18706, 21382, 37412, 42764, 46765, 53455, 93530, 106910, 187060, 213820, 502477, 1004954, 2009908, 2127509, 2512385, 4255018, 5024770, 8510036, 10049540, 10637545, 21275090, 42550180, 99992923, 199985846, 399971692, 499964615, 999929230, 1999858460]

約数ペア:

[(1, 1999858460), (2, 999929230), (4, 499964615), (5, 399971692), (10, 199985846), (20, 99992923), (47, 42550180), (94, 21275090), (188, 10637545), (199, 10049540), (235, 8510036), (398, 5024770), (470, 4255018), (796, 2512385), (940, 2127509), (995, 2009908), (1990, 1004954), (3980, 502477), (9353, 213820), (10691, 187060), (18706, 106910), (21382, 93530), (37412, 53455), (42764, 46765)]