6520780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{991}}^1$

素因数の和:1054

約数の個数: 48

約数和(自身を含む): 15998976

約数和(自身を除く): 9478196

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 70, 94, 140, 188, 235, 329, 470, 658, 940, 991, 1316, 1645, 1982, 3290, 3964, 4955, 6580, 6937, 9910, 13874, 19820, 27748, 34685, 46577, 69370, 93154, 138740, 186308, 232885, 326039, 465770, 652078, 931540, 1304156, 1630195, 3260390, 6520780]

約数ペア:

[(1, 6520780), (2, 3260390), (4, 1630195), (5, 1304156), (7, 931540), (10, 652078), (14, 465770), (20, 326039), (28, 232885), (35, 186308), (47, 138740), (70, 93154), (94, 69370), (140, 46577), (188, 34685), (235, 27748), (329, 19820), (470, 13874), (658, 9910), (940, 6937), (991, 6580), (1316, 4955), (1645, 3964), (1982, 3290)]