281103810

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{720779}}^1$

素因数の和:720802

約数の個数: 32

約数和(自身を含む): 726546240

約数和(自身を除く): 445442430

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 720779, 1441558, 2162337, 3603895, 4324674, 7207790, 9370127, 10811685, 18740254, 21623370, 28110381, 46850635, 56220762, 93701270, 140551905, 281103810]

約数ペア:

[(1, 281103810), (2, 140551905), (3, 93701270), (5, 56220762), (6, 46850635), (10, 28110381), (13, 21623370), (15, 18740254), (26, 10811685), (30, 9370127), (39, 7207790), (65, 4324674), (78, 3603895), (130, 2162337), (195, 1441558), (390, 720779)]