978995810

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{242927}}^1$

素因数の和:242978

約数の個数: 32

約数和(自身を含む): 1958971392

約数和(自身を除く): 979975582

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 242927, 485854, 1214635, 2429270, 3158051, 6316102, 7530737, 15061474, 15790255, 31580510, 37653685, 75307370, 97899581, 195799162, 489497905, 978995810]

約数ペア:

[(1, 978995810), (2, 489497905), (5, 195799162), (10, 97899581), (13, 75307370), (26, 37653685), (31, 31580510), (62, 15790255), (65, 15061474), (130, 7530737), (155, 6316102), (310, 3158051), (403, 2429270), (806, 1214635), (2015, 485854), (4030, 242927)]