20282145

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{2213}}^1$

素因数の和:2281

約数の個数: 32

約数和(自身を含む): 35707392

約数和(自身を除く): 15425247

約数列:

[1, 3, 5, 13, 15, 39, 47, 65, 141, 195, 235, 611, 705, 1833, 2213, 3055, 6639, 9165, 11065, 28769, 33195, 86307, 104011, 143845, 312033, 431535, 520055, 1352143, 1560165, 4056429, 6760715, 20282145]

約数ペア:

[(1, 20282145), (3, 6760715), (5, 4056429), (13, 1560165), (15, 1352143), (39, 520055), (47, 431535), (65, 312033), (141, 143845), (195, 104011), (235, 86307), (611, 33195), (705, 28769), (1833, 11065), (2213, 9165), (3055, 6639)]