20099080

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{10691}}^1$

素因数の和:10749

約数の個数: 32

約数和(自身を含む): 46189440

約数和(自身を除く): 26090360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 10691, 21382, 42764, 53455, 85528, 106910, 213820, 427640, 502477, 1004954, 2009908, 2512385, 4019816, 5024770, 10049540, 20099080]

約数ペア:

[(1, 20099080), (2, 10049540), (4, 5024770), (5, 4019816), (8, 2512385), (10, 2009908), (20, 1004954), (40, 502477), (47, 427640), (94, 213820), (188, 106910), (235, 85528), (376, 53455), (470, 42764), (940, 21382), (1880, 10691)]