20205112

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1$

素因数の和:208

約数の個数: 64

約数和(自身を含む): 42768000

約数和(自身を除く): 22562888

約数列:

[1, 2, 4, 8, 17, 29, 34, 47, 58, 68, 94, 109, 116, 136, 188, 218, 232, 376, 436, 493, 799, 872, 986, 1363, 1598, 1853, 1972, 2726, 3161, 3196, 3706, 3944, 5123, 5452, 6322, 6392, 7412, 10246, 10904, 12644, 14824, 20492, 23171, 25288, 40984, 46342, 53737, 87091, 92684, 107474, 148567, 174182, 185368, 214948, 297134, 348364, 429896, 594268, 696728, 1188536, 2525639, 5051278, 10102556, 20205112]

約数ペア:

[(1, 20205112), (2, 10102556), (4, 5051278), (8, 2525639), (17, 1188536), (29, 696728), (34, 594268), (47, 429896), (58, 348364), (68, 297134), (94, 214948), (109, 185368), (116, 174182), (136, 148567), (188, 107474), (218, 92684), (232, 87091), (376, 53737), (436, 46342), (493, 40984), (799, 25288), (872, 23171), (986, 20492), (1363, 14824), (1598, 12644), (1853, 10904), (1972, 10246), (2726, 7412), (3161, 6392), (3196, 6322), (3706, 5452), (3944, 5123)]