256780087031

素因数分解:

${\mathrm{13}}^2\times {\mathrm{1531}}^1\times {\mathrm{992429}}^1$

素因数の和:993986

約数の個数: 12

約数和(自身を含む): 278233705080

約数和(自身を除く): 21453618049

約数列:

[1, 13, 169, 1531, 19903, 258739, 992429, 12901577, 167720501, 1519408799, 19752314387, 256780087031]

約数ペア:

[(1, 256780087031), (13, 19752314387), (169, 1519408799), (1531, 167720501), (19903, 12901577), (258739, 992429)]