20216447984

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{613661}}^1$

素因数の和:613769

約数の個数: 40

約数和(自身を含む): 41090807520

約数和(自身を除く): 20874359536

約数列:

[1, 2, 4, 8, 16, 29, 58, 71, 116, 142, 232, 284, 464, 568, 1136, 2059, 4118, 8236, 16472, 32944, 613661, 1227322, 2454644, 4909288, 9818576, 17796169, 35592338, 43569931, 71184676, 87139862, 142369352, 174279724, 284738704, 348559448, 697118896, 1263527999, 2527055998, 5054111996, 10108223992, 20216447984]

約数ペア:

[(1, 20216447984), (2, 10108223992), (4, 5054111996), (8, 2527055998), (16, 1263527999), (29, 697118896), (58, 348559448), (71, 284738704), (116, 174279724), (142, 142369352), (232, 87139862), (284, 71184676), (464, 43569931), (568, 35592338), (1136, 17796169), (2059, 9818576), (4118, 4909288), (8236, 2454644), (16472, 1227322), (32944, 613661)]