281731710

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{722389}}^1$

素因数の和:722412

約数の個数: 32

約数和(自身を含む): 728169120

約数和(自身を除く): 446437410

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 722389, 1444778, 2167167, 3611945, 4334334, 7223890, 9391057, 10835835, 18782114, 21671670, 28173171, 46955285, 56346342, 93910570, 140865855, 281731710]

約数ペア:

[(1, 281731710), (2, 140865855), (3, 93910570), (5, 56346342), (6, 46955285), (10, 28173171), (13, 21671670), (15, 18782114), (26, 10835835), (30, 9391057), (39, 7223890), (65, 4334334), (78, 3611945), (130, 2167167), (195, 1444778), (390, 722389)]