81117328

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{163543}}^1$

素因数の和:163582

約数の個数: 20

約数和(自身を含む): 162235648

約数和(自身を除く): 81118320

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 163543, 327086, 654172, 1308344, 2616688, 5069833, 10139666, 20279332, 40558664, 81117328]

約数ペア:

[(1, 81117328), (2, 40558664), (4, 20279332), (8, 10139666), (16, 5069833), (31, 2616688), (62, 1308344), (124, 654172), (248, 327086), (496, 163543)]