256908379

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{31721}}^1$

素因数の和:31830

約数の個数: 16

約数和(自身を含む): 319757760

約数和(自身を除く): 62849381

約数列:

[1, 7, 13, 89, 91, 623, 1157, 8099, 31721, 222047, 412373, 2823169, 2886611, 19762183, 36701197, 256908379]

約数ペア:

[(1, 256908379), (7, 36701197), (13, 19762183), (89, 2886611), (91, 2823169), (623, 412373), (1157, 222047), (8099, 31721)]