128548665

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{408091}}^1$

素因数の和:408109

約数の個数: 24

約数和(自身を含む): 254649408

約数和(自身を除く): 126100743

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 408091, 1224273, 2040455, 2856637, 3672819, 6121365, 8569911, 14283185, 18364095, 25709733, 42849555, 128548665]

約数ペア:

[(1, 128548665), (3, 42849555), (5, 25709733), (7, 18364095), (9, 14283185), (15, 8569911), (21, 6121365), (35, 3672819), (45, 2856637), (63, 2040455), (105, 1224273), (315, 408091)]