210500780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{31991}}^1$

素因数の和:32054

約数の個数: 48

約数和(自身を含む): 515966976

約数和(自身を除く): 305466196

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 70, 94, 140, 188, 235, 329, 470, 658, 940, 1316, 1645, 3290, 6580, 31991, 63982, 127964, 159955, 223937, 319910, 447874, 639820, 895748, 1119685, 1503577, 2239370, 3007154, 4478740, 6014308, 7517885, 10525039, 15035770, 21050078, 30071540, 42100156, 52625195, 105250390, 210500780]

約数ペア:

[(1, 210500780), (2, 105250390), (4, 52625195), (5, 42100156), (7, 30071540), (10, 21050078), (14, 15035770), (20, 10525039), (28, 7517885), (35, 6014308), (47, 4478740), (70, 3007154), (94, 2239370), (140, 1503577), (188, 1119685), (235, 895748), (329, 639820), (470, 447874), (658, 319910), (940, 223937), (1316, 159955), (1645, 127964), (3290, 63982), (6580, 31991)]