20127515

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{2089}}^1$

素因数の和:2182

約数の個数: 16

約数和(自身を含む): 25280640

約数和(自身を除く): 5153125

約数列:

[1, 5, 41, 47, 205, 235, 1927, 2089, 9635, 10445, 85649, 98183, 428245, 490915, 4025503, 20127515]

約数ペア:

[(1, 20127515), (5, 4025503), (41, 490915), (47, 428245), (205, 98183), (235, 85649), (1927, 10445), (2089, 9635)]