20154485

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{2081}}^1$

素因数の和:2248

約数の個数: 16

約数和(自身を含む): 26233200

約数和(自身を除く): 6078715

約数列:

[1, 5, 13, 65, 149, 745, 1937, 2081, 9685, 10405, 27053, 135265, 310069, 1550345, 4030897, 20154485]

約数ペア:

[(1, 20154485), (5, 4030897), (13, 1550345), (65, 310069), (149, 135265), (745, 27053), (1937, 10405), (2081, 9685)]