68423888

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{328961}}^1$

素因数の和:328982

約数の個数: 20

約数和(自身を含む): 142769508

約数和(自身を除く): 74345620

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 328961, 657922, 1315844, 2631688, 4276493, 5263376, 8552986, 17105972, 34211944, 68423888]

約数ペア:

[(1, 68423888), (2, 34211944), (4, 17105972), (8, 8552986), (13, 5263376), (16, 4276493), (26, 2631688), (52, 1315844), (104, 657922), (208, 328961)]