639770768

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{9349}}^1$

素因数の和:9424

約数の個数: 80

約数和(自身を含む): 1558233600

約数和(自身を除く): 918462832

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 47, 52, 56, 91, 94, 104, 112, 182, 188, 208, 329, 364, 376, 611, 658, 728, 752, 1222, 1316, 1456, 2444, 2632, 4277, 4888, 5264, 8554, 9349, 9776, 17108, 18698, 34216, 37396, 65443, 68432, 74792, 121537, 130886, 149584, 243074, 261772, 439403, 486148, 523544, 850759, 878806, 972296, 1047088, 1701518, 1757612, 1944592, 3075821, 3403036, 3515224, 5712239, 6151642, 6806072, 7030448, 11424478, 12303284, 13612144, 22848956, 24606568, 39985673, 45697912, 49213136, 79971346, 91395824, 159942692, 319885384, 639770768]

約数ペア:

[(1, 639770768), (2, 319885384), (4, 159942692), (7, 91395824), (8, 79971346), (13, 49213136), (14, 45697912), (16, 39985673), (26, 24606568), (28, 22848956), (47, 13612144), (52, 12303284), (56, 11424478), (91, 7030448), (94, 6806072), (104, 6151642), (112, 5712239), (182, 3515224), (188, 3403036), (208, 3075821), (329, 1944592), (364, 1757612), (376, 1701518), (611, 1047088), (658, 972296), (728, 878806), (752, 850759), (1222, 523544), (1316, 486148), (1456, 439403), (2444, 261772), (2632, 243074), (4277, 149584), (4888, 130886), (5264, 121537), (8554, 74792), (9349, 68432), (9776, 65443), (17108, 37396), (18698, 34216)]