20481145

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{2729}}^1$

素因数の和:2832

約数の個数: 16

約数和(自身を含む): 26208000

約数和(自身を除く): 5726855

約数列:

[1, 5, 19, 79, 95, 395, 1501, 2729, 7505, 13645, 51851, 215591, 259255, 1077955, 4096229, 20481145]

約数ペア:

[(1, 20481145), (5, 4096229), (19, 1077955), (79, 259255), (95, 215591), (395, 51851), (1501, 13645), (2729, 7505)]