268172020

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{137}}^1\times {\mathrm{1009}}^1$

素因数の和:1252

約数の個数: 48

約数和(自身を含む): 573688080

約数和(自身を除く): 305516060

約数列:

[1, 2, 4, 5, 10, 20, 97, 137, 194, 274, 388, 485, 548, 685, 970, 1009, 1370, 1940, 2018, 2740, 4036, 5045, 10090, 13289, 20180, 26578, 53156, 66445, 97873, 132890, 138233, 195746, 265780, 276466, 391492, 489365, 552932, 691165, 978730, 1382330, 1957460, 2764660, 13408601, 26817202, 53634404, 67043005, 134086010, 268172020]

約数ペア:

[(1, 268172020), (2, 134086010), (4, 67043005), (5, 53634404), (10, 26817202), (20, 13408601), (97, 2764660), (137, 1957460), (194, 1382330), (274, 978730), (388, 691165), (485, 552932), (548, 489365), (685, 391492), (970, 276466), (1009, 265780), (1370, 195746), (1940, 138233), (2018, 132890), (2740, 97873), (4036, 66445), (5045, 53156), (10090, 26578), (13289, 20180)]