390804345

素因数分解:

$3^4\times 5^1\times {\mathrm{709}}^1\times {\mathrm{1361}}^1$

素因数の和:2087

約数の個数: 40

約数和(自身を含む): 702056520

約数和(自身を除く): 311252175

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 709, 1361, 2127, 3545, 4083, 6381, 6805, 10635, 12249, 19143, 20415, 31905, 36747, 57429, 61245, 95715, 110241, 183735, 287145, 551205, 964949, 2894847, 4824745, 8684541, 14474235, 26053623, 43422705, 78160869, 130268115, 390804345]

約数ペア:

[(1, 390804345), (3, 130268115), (5, 78160869), (9, 43422705), (15, 26053623), (27, 14474235), (45, 8684541), (81, 4824745), (135, 2894847), (405, 964949), (709, 551205), (1361, 287145), (2127, 183735), (3545, 110241), (4083, 95715), (6381, 61245), (6805, 57429), (10635, 36747), (12249, 31905), (19143, 20415)]