18245825

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1811}}^1$

素因数の和:1865

約数の個数: 24

約数和(自身を含む): 25165056

約数和(自身を除く): 6919231

約数列:

[1, 5, 13, 25, 31, 65, 155, 325, 403, 775, 1811, 2015, 9055, 10075, 23543, 45275, 56141, 117715, 280705, 588575, 729833, 1403525, 3649165, 18245825]

約数ペア:

[(1, 18245825), (5, 3649165), (13, 1403525), (25, 729833), (31, 588575), (65, 280705), (155, 117715), (325, 56141), (403, 45275), (775, 23543), (1811, 10075), (2015, 9055)]