20346470

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{28657}}^1$

素因数の和:28735

約数の個数: 16

約数和(自身を含む): 37140768

約数和(自身を除く): 16794298

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 28657, 57314, 143285, 286570, 2034647, 4069294, 10173235, 20346470]

約数ペア:

[(1, 20346470), (2, 10173235), (5, 4069294), (10, 2034647), (71, 286570), (142, 143285), (355, 57314), (710, 28657)]