2520174839

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{487}}^1$

素因数の和:640

約数の個数: 64

約数和(自身を含む): 3397416960

約数和(自身を除く): 877242121

約数列:

[1, 7, 13, 19, 41, 73, 91, 133, 247, 287, 487, 511, 533, 779, 949, 1387, 1729, 2993, 3409, 3731, 5453, 6331, 6643, 9253, 9709, 10127, 18031, 19967, 20951, 35551, 38909, 44317, 56867, 64771, 70889, 120289, 126217, 139769, 248857, 259571, 272363, 379373, 398069, 462163, 675469, 739271, 842023, 1457591, 1816997, 2655611, 3235141, 4728283, 4931849, 5174897, 8781097, 10203137, 18948683, 27694229, 34522943, 61467679, 132640781, 193859603, 360024977, 2520174839]

約数ペア:

[(1, 2520174839), (7, 360024977), (13, 193859603), (19, 132640781), (41, 61467679), (73, 34522943), (91, 27694229), (133, 18948683), (247, 10203137), (287, 8781097), (487, 5174897), (511, 4931849), (533, 4728283), (779, 3235141), (949, 2655611), (1387, 1816997), (1729, 1457591), (2993, 842023), (3409, 739271), (3731, 675469), (5453, 462163), (6331, 398069), (6643, 379373), (9253, 272363), (9709, 259571), (10127, 248857), (18031, 139769), (19967, 126217), (20951, 120289), (35551, 70889), (38909, 64771), (44317, 56867)]