12901265

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1$

素因数の和:209

約数の個数: 32

約数和(自身を含む): 17611776

約数和(自身を除く): 4710511

約数列:

[1, 5, 13, 41, 47, 65, 103, 205, 235, 515, 533, 611, 1339, 1927, 2665, 3055, 4223, 4841, 6695, 9635, 21115, 24205, 25051, 54899, 62933, 125255, 198481, 274495, 314665, 992405, 2580253, 12901265]

約数ペア:

[(1, 12901265), (5, 2580253), (13, 992405), (41, 314665), (47, 274495), (65, 198481), (103, 125255), (205, 62933), (235, 54899), (515, 25051), (533, 24205), (611, 21115), (1339, 9635), (1927, 6695), (2665, 4841), (3055, 4223)]