20915310

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53629}}^1$

素因数の和:53652

約数の個数: 32

約数和(自身を含む): 54059040

約数和(自身を除く): 33143730

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 53629, 107258, 160887, 268145, 321774, 536290, 697177, 804435, 1394354, 1608870, 2091531, 3485885, 4183062, 6971770, 10457655, 20915310]

約数ペア:

[(1, 20915310), (2, 10457655), (3, 6971770), (5, 4183062), (6, 3485885), (10, 2091531), (13, 1608870), (15, 1394354), (26, 804435), (30, 697177), (39, 536290), (65, 321774), (78, 268145), (130, 160887), (195, 107258), (390, 53629)]