68708740

素因数分解:

$2^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{13687}}^1$

素因数の和:13947

約数の個数: 24

約数和(自身を含む): 144873792

約数和(自身を除く): 76165052

約数列:

[1, 2, 4, 5, 10, 20, 251, 502, 1004, 1255, 2510, 5020, 13687, 27374, 54748, 68435, 136870, 273740, 3435437, 6870874, 13741748, 17177185, 34354370, 68708740]

約数ペア:

[(1, 68708740), (2, 34354370), (4, 17177185), (5, 13741748), (10, 6870874), (20, 3435437), (251, 273740), (502, 136870), (1004, 68435), (1255, 54748), (2510, 27374), (5020, 13687)]