331326580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1274333}}^1$

素因数の和:1274355

約数の個数: 24

約数和(自身を含む): 749308392

約数和(自身を除く): 417981812

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1274333, 2548666, 5097332, 6371665, 12743330, 16566329, 25486660, 33132658, 66265316, 82831645, 165663290, 331326580]

約数ペア:

[(1, 331326580), (2, 165663290), (4, 82831645), (5, 66265316), (10, 33132658), (13, 25486660), (20, 16566329), (26, 12743330), (52, 6371665), (65, 5097332), (130, 2548666), (260, 1274333)]