81461744

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{55949}}^1$

素因数の和:55977

約数の個数: 40

約数和(自身を含む): 194258400

約数和(自身を除く): 112796656

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 55949, 111898, 223796, 391643, 447592, 727337, 783286, 895184, 1454674, 1566572, 2909348, 3133144, 5091359, 5818696, 6266288, 10182718, 11637392, 20365436, 40730872, 81461744]

約数ペア:

[(1, 81461744), (2, 40730872), (4, 20365436), (7, 11637392), (8, 10182718), (13, 6266288), (14, 5818696), (16, 5091359), (26, 3133144), (28, 2909348), (52, 1566572), (56, 1454674), (91, 895184), (104, 783286), (112, 727337), (182, 447592), (208, 391643), (364, 223796), (728, 111898), (1456, 55949)]