90520780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{646577}}^1$

素因数の和:646593

約数の個数: 24

約数和(自身を含む): 217250208

約数和(自身を除く): 126729428

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 646577, 1293154, 2586308, 3232885, 4526039, 6465770, 9052078, 12931540, 18104156, 22630195, 45260390, 90520780]

約数ペア:

[(1, 90520780), (2, 45260390), (4, 22630195), (5, 18104156), (7, 12931540), (10, 9052078), (14, 6465770), (20, 4526039), (28, 3232885), (35, 2586308), (70, 1293154), (140, 646577)]