204507660

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{486923}}^1$

素因数の和:486942

約数の個数: 48

約数和(自身を含む): 654425856

約数和(自身を除く): 449918196

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 486923, 973846, 1460769, 1947692, 2434615, 2921538, 3408461, 4869230, 5843076, 6816922, 7303845, 9738460, 10225383, 13633844, 14607690, 17042305, 20450766, 29215380, 34084610, 40901532, 51126915, 68169220, 102253830, 204507660]

約数ペア:

[(1, 204507660), (2, 102253830), (3, 68169220), (4, 51126915), (5, 40901532), (6, 34084610), (7, 29215380), (10, 20450766), (12, 17042305), (14, 14607690), (15, 13633844), (20, 10225383), (21, 9738460), (28, 7303845), (30, 6816922), (35, 5843076), (42, 4869230), (60, 3408461), (70, 2921538), (84, 2434615), (105, 1947692), (140, 1460769), (210, 973846), (420, 486923)]