19645808

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1$

素因数の和:262

約数の個数: 80

約数和(自身を含む): 47663616

約数和(自身を除く): 28017808

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 103, 104, 112, 131, 182, 206, 208, 262, 364, 412, 524, 721, 728, 824, 917, 1048, 1339, 1442, 1456, 1648, 1703, 1834, 2096, 2678, 2884, 3406, 3668, 5356, 5768, 6812, 7336, 9373, 10712, 11536, 11921, 13493, 13624, 14672, 18746, 21424, 23842, 26986, 27248, 37492, 47684, 53972, 74984, 94451, 95368, 107944, 149968, 175409, 188902, 190736, 215888, 350818, 377804, 701636, 755608, 1227863, 1403272, 1511216, 2455726, 2806544, 4911452, 9822904, 19645808]

約数ペア:

[(1, 19645808), (2, 9822904), (4, 4911452), (7, 2806544), (8, 2455726), (13, 1511216), (14, 1403272), (16, 1227863), (26, 755608), (28, 701636), (52, 377804), (56, 350818), (91, 215888), (103, 190736), (104, 188902), (112, 175409), (131, 149968), (182, 107944), (206, 95368), (208, 94451), (262, 74984), (364, 53972), (412, 47684), (524, 37492), (721, 27248), (728, 26986), (824, 23842), (917, 21424), (1048, 18746), (1339, 14672), (1442, 13624), (1456, 13493), (1648, 11921), (1703, 11536), (1834, 10712), (2096, 9373), (2678, 7336), (2884, 6812), (3406, 5768), (3668, 5356)]