1261328

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{2543}}^1$

素因数の和:2582

約数の個数: 20

約数和(自身を含む): 2523648

約数和(自身を除く): 1262320

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 2543, 5086, 10172, 20344, 40688, 78833, 157666, 315332, 630664, 1261328]

約数ペア:

[(1, 1261328), (2, 630664), (4, 315332), (8, 157666), (16, 78833), (31, 40688), (62, 20344), (124, 10172), (248, 5086), (496, 2543)]