280958730

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{720407}}^1$

素因数の和:720430

約数の個数: 32

約数和(自身を含む): 726171264

約数和(自身を除く): 445212534

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 720407, 1440814, 2161221, 3602035, 4322442, 7204070, 9365291, 10806105, 18730582, 21612210, 28095873, 46826455, 56191746, 93652910, 140479365, 280958730]

約数ペア:

[(1, 280958730), (2, 140479365), (3, 93652910), (5, 56191746), (6, 46826455), (10, 28095873), (13, 21612210), (15, 18730582), (26, 10806105), (30, 9365291), (39, 7204070), (65, 4322442), (78, 3602035), (130, 2161221), (195, 1440814), (390, 720407)]