20559695

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{839}}^1$

素因数の和:899

約数の個数: 24

約数和(自身を含む): 27669600

約数和(自身を除く): 7109905

約数列:

[1, 5, 13, 29, 65, 145, 169, 377, 839, 845, 1885, 4195, 4901, 10907, 24331, 24505, 54535, 121655, 141791, 316303, 708955, 1581515, 4111939, 20559695]

約数ペア:

[(1, 20559695), (5, 4111939), (13, 1581515), (29, 708955), (65, 316303), (145, 141791), (169, 121655), (377, 54535), (839, 24505), (845, 24331), (1885, 10907), (4195, 4901)]