16421680

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{18661}}^1$

素因数の和:18685

約数の個数: 40

約数和(自身を含む): 41653584

約数和(自身を除く): 25231904

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 18661, 37322, 74644, 93305, 149288, 186610, 205271, 298576, 373220, 410542, 746440, 821084, 1026355, 1492880, 1642168, 2052710, 3284336, 4105420, 8210840, 16421680]

約数ペア:

[(1, 16421680), (2, 8210840), (4, 4105420), (5, 3284336), (8, 2052710), (10, 1642168), (11, 1492880), (16, 1026355), (20, 821084), (22, 746440), (40, 410542), (44, 373220), (55, 298576), (80, 205271), (88, 186610), (110, 149288), (176, 93305), (220, 74644), (440, 37322), (880, 18661)]