660141244

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{17477}}^1$

素因数の和:17578

約数の個数: 48

約数和(自身を含む): 1409425920

約数和(自身を除く): 749284676

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 71, 76, 133, 142, 266, 284, 497, 532, 994, 1349, 1988, 2698, 5396, 9443, 17477, 18886, 34954, 37772, 69908, 122339, 244678, 332063, 489356, 664126, 1240867, 1328252, 2324441, 2481734, 4648882, 4963468, 8686069, 9297764, 17372138, 23576473, 34744276, 47152946, 94305892, 165035311, 330070622, 660141244]

約数ペア:

[(1, 660141244), (2, 330070622), (4, 165035311), (7, 94305892), (14, 47152946), (19, 34744276), (28, 23576473), (38, 17372138), (71, 9297764), (76, 8686069), (133, 4963468), (142, 4648882), (266, 2481734), (284, 2324441), (497, 1328252), (532, 1240867), (994, 664126), (1349, 489356), (1988, 332063), (2698, 244678), (5396, 122339), (9443, 69908), (17477, 37772), (18886, 34954)]