205355840

素因数分解:

$2^6\times 5^1\times {\mathrm{491}}^1\times {\mathrm{1307}}^1$

素因数の和:1815

約数の個数: 56

約数和(自身を含む): 490374432

約数和(自身を除く): 285018592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 491, 982, 1307, 1964, 2455, 2614, 3928, 4910, 5228, 6535, 7856, 9820, 10456, 13070, 15712, 19640, 20912, 26140, 31424, 39280, 41824, 52280, 78560, 83648, 104560, 157120, 209120, 418240, 641737, 1283474, 2566948, 3208685, 5133896, 6417370, 10267792, 12834740, 20535584, 25669480, 41071168, 51338960, 102677920, 205355840]

約数ペア:

[(1, 205355840), (2, 102677920), (4, 51338960), (5, 41071168), (8, 25669480), (10, 20535584), (16, 12834740), (20, 10267792), (32, 6417370), (40, 5133896), (64, 3208685), (80, 2566948), (160, 1283474), (320, 641737), (491, 418240), (982, 209120), (1307, 157120), (1964, 104560), (2455, 83648), (2614, 78560), (3928, 52280), (4910, 41824), (5228, 39280), (6535, 31424), (7856, 26140), (9820, 20912), (10456, 19640), (13070, 15712)]