68776640

素因数分解:

$2^6\times 5^1\times {\mathrm{197}}^1\times {\mathrm{1091}}^1$

素因数の和:1305

約数の個数: 56

約数和(自身を含む): 164756592

約数和(自身を除く): 95979952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 197, 320, 394, 788, 985, 1091, 1576, 1970, 2182, 3152, 3940, 4364, 5455, 6304, 7880, 8728, 10910, 12608, 15760, 17456, 21820, 31520, 34912, 43640, 63040, 69824, 87280, 174560, 214927, 349120, 429854, 859708, 1074635, 1719416, 2149270, 3438832, 4298540, 6877664, 8597080, 13755328, 17194160, 34388320, 68776640]

約数ペア:

[(1, 68776640), (2, 34388320), (4, 17194160), (5, 13755328), (8, 8597080), (10, 6877664), (16, 4298540), (20, 3438832), (32, 2149270), (40, 1719416), (64, 1074635), (80, 859708), (160, 429854), (197, 349120), (320, 214927), (394, 174560), (788, 87280), (985, 69824), (1091, 63040), (1576, 43640), (1970, 34912), (2182, 31520), (3152, 21820), (3940, 17456), (4364, 15760), (5455, 12608), (6304, 10910), (7880, 8728)]