256808215

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{197}}^1\times {\mathrm{6359}}^1$

素因数の和:6602

約数の個数: 16

約数和(自身を含む): 317338560

約数和(自身を除く): 60530345

約数列:

[1, 5, 41, 197, 205, 985, 6359, 8077, 31795, 40385, 260719, 1252723, 1303595, 6263615, 51361643, 256808215]

約数ペア:

[(1, 256808215), (5, 51361643), (41, 6263615), (197, 1303595), (205, 1252723), (985, 260719), (6359, 40385), (8077, 31795)]