81554576

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:240

約数の個数: 80

約数和(自身を含む): 175488768

約数和(自身を除く): 93934192

約数列:

[1, 2, 4, 8, 16, 17, 34, 41, 68, 71, 82, 103, 136, 142, 164, 206, 272, 284, 328, 412, 568, 656, 697, 824, 1136, 1207, 1394, 1648, 1751, 2414, 2788, 2911, 3502, 4223, 4828, 5576, 5822, 7004, 7313, 8446, 9656, 11152, 11644, 14008, 14626, 16892, 19312, 23288, 28016, 29252, 33784, 46576, 49487, 58504, 67568, 71791, 98974, 117008, 124321, 143582, 197948, 248642, 287164, 299833, 395896, 497284, 574328, 599666, 791792, 994568, 1148656, 1199332, 1989136, 2398664, 4797328, 5097161, 10194322, 20388644, 40777288, 81554576]

約数ペア:

[(1, 81554576), (2, 40777288), (4, 20388644), (8, 10194322), (16, 5097161), (17, 4797328), (34, 2398664), (41, 1989136), (68, 1199332), (71, 1148656), (82, 994568), (103, 791792), (136, 599666), (142, 574328), (164, 497284), (206, 395896), (272, 299833), (284, 287164), (328, 248642), (412, 197948), (568, 143582), (656, 124321), (697, 117008), (824, 98974), (1136, 71791), (1207, 67568), (1394, 58504), (1648, 49487), (1751, 46576), (2414, 33784), (2788, 29252), (2911, 28016), (3502, 23288), (4223, 19312), (4828, 16892), (5576, 14626), (5822, 14008), (7004, 11644), (7313, 11152), (8446, 9656)]