68990480

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{66337}}^1$

素因数の和:66363

約数の個数: 40

約数和(自身を含む): 172744152

約数和(自身を除く): 103753672

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 66337, 132674, 265348, 331685, 530696, 663370, 862381, 1061392, 1326740, 1724762, 2653480, 3449524, 4311905, 5306960, 6899048, 8623810, 13798096, 17247620, 34495240, 68990480]

約数ペア:

[(1, 68990480), (2, 34495240), (4, 17247620), (5, 13798096), (8, 8623810), (10, 6899048), (13, 5306960), (16, 4311905), (20, 3449524), (26, 2653480), (40, 1724762), (52, 1326740), (65, 1061392), (80, 862381), (104, 663370), (130, 530696), (208, 331685), (260, 265348), (520, 132674), (1040, 66337)]