12781145

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{6343}}^1$

素因数の和:6392

約数の個数: 16

約数和(自身を含む): 17052672

約数和(自身を除く): 4271527

約数列:

[1, 5, 13, 31, 65, 155, 403, 2015, 6343, 31715, 82459, 196633, 412295, 983165, 2556229, 12781145]

約数ペア:

[(1, 12781145), (5, 2556229), (13, 983165), (31, 412295), (65, 196633), (155, 82459), (403, 31715), (2015, 6343)]