20926864

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{379}}^1$

素因数の和:440

約数の個数: 80

約数和(自身を含む): 50889600

約数和(自身を除く): 29962736

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 29, 34, 56, 58, 68, 112, 116, 119, 136, 203, 232, 238, 272, 379, 406, 464, 476, 493, 758, 812, 952, 986, 1516, 1624, 1904, 1972, 2653, 3032, 3248, 3451, 3944, 5306, 6064, 6443, 6902, 7888, 10612, 10991, 12886, 13804, 21224, 21982, 25772, 27608, 42448, 43964, 45101, 51544, 55216, 76937, 87928, 90202, 103088, 153874, 175856, 180404, 186847, 307748, 360808, 373694, 615496, 721616, 747388, 1230992, 1307929, 1494776, 2615858, 2989552, 5231716, 10463432, 20926864]

約数ペア:

[(1, 20926864), (2, 10463432), (4, 5231716), (7, 2989552), (8, 2615858), (14, 1494776), (16, 1307929), (17, 1230992), (28, 747388), (29, 721616), (34, 615496), (56, 373694), (58, 360808), (68, 307748), (112, 186847), (116, 180404), (119, 175856), (136, 153874), (203, 103088), (232, 90202), (238, 87928), (272, 76937), (379, 55216), (406, 51544), (464, 45101), (476, 43964), (493, 42448), (758, 27608), (812, 25772), (952, 21982), (986, 21224), (1516, 13804), (1624, 12886), (1904, 10991), (1972, 10612), (2653, 7888), (3032, 6902), (3248, 6443), (3451, 6064), (3944, 5306)]