669386225

素因数分解:

$5^2\times {\mathrm{71}}^1\times {\mathrm{149}}^1\times {\mathrm{2531}}^1$

素因数の和:2761

約数の個数: 24

約数和(自身を含む): 847713600

約数和(自身を除く): 178327375

約数列:

[1, 5, 25, 71, 149, 355, 745, 1775, 2531, 3725, 10579, 12655, 52895, 63275, 179701, 264475, 377119, 898505, 1885595, 4492525, 9427975, 26775449, 133877245, 669386225]

約数ペア:

[(1, 669386225), (5, 133877245), (25, 26775449), (71, 9427975), (149, 4492525), (355, 1885595), (745, 898505), (1775, 377119), (2531, 264475), (3725, 179701), (10579, 63275), (12655, 52895)]