80671240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{155137}}^1$

素因数の和:155161

約数の個数: 32

約数和(自身を含む): 195473880

約数和(自身を除く): 114802640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 155137, 310274, 620548, 775685, 1241096, 1551370, 2016781, 3102740, 4033562, 6205480, 8067124, 10083905, 16134248, 20167810, 40335620, 80671240]

約数ペア:

[(1, 80671240), (2, 40335620), (4, 20167810), (5, 16134248), (8, 10083905), (10, 8067124), (13, 6205480), (20, 4033562), (26, 3102740), (40, 2016781), (52, 1551370), (65, 1241096), (104, 775685), (130, 620548), (260, 310274), (520, 155137)]