28227810

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{72379}}^1$

素因数の和:72402

約数の個数: 32

約数和(自身を含む): 72959040

約数和(自身を除く): 44731230

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 72379, 144758, 217137, 361895, 434274, 723790, 940927, 1085685, 1881854, 2171370, 2822781, 4704635, 5645562, 9409270, 14113905, 28227810]

約数ペア:

[(1, 28227810), (2, 14113905), (3, 9409270), (5, 5645562), (6, 4704635), (10, 2822781), (13, 2171370), (15, 1881854), (26, 1085685), (30, 940927), (39, 723790), (65, 434274), (78, 361895), (130, 217137), (195, 144758), (390, 72379)]