20660015

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{2731}}^1$

素因数の和:2842

約数の個数: 16

約数和(自身を含む): 26555040

約数和(自身を除く): 5895025

約数列:

[1, 5, 17, 85, 89, 445, 1513, 2731, 7565, 13655, 46427, 232135, 243059, 1215295, 4132003, 20660015]

約数ペア:

[(1, 20660015), (5, 4132003), (17, 1215295), (85, 243059), (89, 232135), (445, 46427), (1513, 13655), (2731, 7565)]