20027665

素因数分解:

$5^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{1471}}^1$

素因数の和:1872

約数の個数: 16

約数和(自身を含む): 27555840

約数和(自身を除く): 7528175

約数列:

[1, 5, 7, 35, 389, 1471, 1945, 2723, 7355, 10297, 13615, 51485, 572219, 2861095, 4005533, 20027665]

約数ペア:

[(1, 20027665), (5, 4005533), (7, 2861095), (35, 572219), (389, 51485), (1471, 13615), (1945, 10297), (2723, 7355)]