123311240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{237137}}^1$

素因数の和:237161

約数の個数: 32

約数和(自身を含む): 298793880

約数和(自身を除く): 175482640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 237137, 474274, 948548, 1185685, 1897096, 2371370, 3082781, 4742740, 6165562, 9485480, 12331124, 15413905, 24662248, 30827810, 61655620, 123311240]

約数ペア:

[(1, 123311240), (2, 61655620), (4, 30827810), (5, 24662248), (8, 15413905), (10, 12331124), (13, 9485480), (20, 6165562), (26, 4742740), (40, 3082781), (52, 2371370), (65, 1897096), (104, 1185685), (130, 948548), (260, 474274), (520, 237137)]