81081325

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{10847}}^1$

素因数の和:10893

約数の個数: 24

約数和(自身を含む): 112992768

約数和(自身を除く): 31911443

約数列:

[1, 5, 13, 23, 25, 65, 115, 299, 325, 575, 1495, 7475, 10847, 54235, 141011, 249481, 271175, 705055, 1247405, 3243253, 3525275, 6237025, 16216265, 81081325]

約数ペア:

[(1, 81081325), (5, 16216265), (13, 6237025), (23, 3525275), (25, 3243253), (65, 1247405), (115, 705055), (299, 271175), (325, 249481), (575, 141011), (1495, 54235), (7475, 10847)]