257278554

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{431}}^1\times {\mathrm{2551}}^1$

素因数の和:3003

約数の個数: 48

約数和(自身を含む): 601945344

約数和(自身を除く): 344666790

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 234, 431, 862, 1293, 2551, 2586, 3879, 5102, 5603, 7653, 7758, 11206, 15306, 16809, 22959, 33163, 33618, 45918, 50427, 66326, 99489, 100854, 198978, 298467, 596934, 1099481, 2198962, 3298443, 6596886, 9895329, 14293253, 19790658, 28586506, 42879759, 85759518, 128639277, 257278554]

約数ペア:

[(1, 257278554), (2, 128639277), (3, 85759518), (6, 42879759), (9, 28586506), (13, 19790658), (18, 14293253), (26, 9895329), (39, 6596886), (78, 3298443), (117, 2198962), (234, 1099481), (431, 596934), (862, 298467), (1293, 198978), (2551, 100854), (2586, 99489), (3879, 66326), (5102, 50427), (5603, 45918), (7653, 33618), (7758, 33163), (11206, 22959), (15306, 16809)]