81615808

素因数分解:

$2^6\times {\mathrm{31}}^2\times {\mathrm{1327}}^1$

素因数の和:1401

約数の個数: 42

約数和(自身を含む): 167475408

約数和(自身を除く): 85859600

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 248, 496, 961, 992, 1327, 1922, 1984, 2654, 3844, 5308, 7688, 10616, 15376, 21232, 30752, 41137, 42464, 61504, 82274, 84928, 164548, 329096, 658192, 1275247, 1316384, 2550494, 2632768, 5100988, 10201976, 20403952, 40807904, 81615808]

約数ペア:

[(1, 81615808), (2, 40807904), (4, 20403952), (8, 10201976), (16, 5100988), (31, 2632768), (32, 2550494), (62, 1316384), (64, 1275247), (124, 658192), (248, 329096), (496, 164548), (961, 84928), (992, 82274), (1327, 61504), (1922, 42464), (1984, 41137), (2654, 30752), (3844, 21232), (5308, 15376), (7688, 10616)]