81245395

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{5147}}^1$

素因数の和:5211

約数の個数: 32

約数和(自身を含む): 124540416

約数和(自身を除く): 43295021

約数列:

[1, 5, 7, 11, 35, 41, 55, 77, 205, 287, 385, 451, 1435, 2255, 3157, 5147, 15785, 25735, 36029, 56617, 180145, 211027, 283085, 396319, 1055135, 1477189, 1981595, 2321297, 7385945, 11606485, 16249079, 81245395]

約数ペア:

[(1, 81245395), (5, 16249079), (7, 11606485), (11, 7385945), (35, 2321297), (41, 1981595), (55, 1477189), (77, 1055135), (205, 396319), (287, 283085), (385, 211027), (451, 180145), (1435, 56617), (2255, 36029), (3157, 25735), (5147, 15785)]