127944640

素因数分解:

$2^6\times 5^1\times {\mathrm{487}}^1\times {\mathrm{821}}^1$

素因数の和:1325

約数の個数: 56

約数和(自身を含む): 305665632

約数和(自身を除く): 177720992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 487, 821, 974, 1642, 1948, 2435, 3284, 3896, 4105, 4870, 6568, 7792, 8210, 9740, 13136, 15584, 16420, 19480, 26272, 31168, 32840, 38960, 52544, 65680, 77920, 131360, 155840, 262720, 399827, 799654, 1599308, 1999135, 3198616, 3998270, 6397232, 7996540, 12794464, 15993080, 25588928, 31986160, 63972320, 127944640]

約数ペア:

[(1, 127944640), (2, 63972320), (4, 31986160), (5, 25588928), (8, 15993080), (10, 12794464), (16, 7996540), (20, 6397232), (32, 3998270), (40, 3198616), (64, 1999135), (80, 1599308), (160, 799654), (320, 399827), (487, 262720), (821, 155840), (974, 131360), (1642, 77920), (1948, 65680), (2435, 52544), (3284, 38960), (3896, 32840), (4105, 31168), (4870, 26272), (6568, 19480), (7792, 16420), (8210, 15584), (9740, 13136)]