19270888

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{257}}^1$

素因数の和:386

約数の個数: 64

約数和(自身を含む): 45077760

約数和(自身を除く): 25806872

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 103, 104, 182, 206, 257, 364, 412, 514, 721, 728, 824, 1028, 1339, 1442, 1799, 2056, 2678, 2884, 3341, 3598, 5356, 5768, 6682, 7196, 9373, 10712, 13364, 14392, 18746, 23387, 26471, 26728, 37492, 46774, 52942, 74984, 93548, 105884, 185297, 187096, 211768, 344123, 370594, 688246, 741188, 1376492, 1482376, 2408861, 2752984, 4817722, 9635444, 19270888]

約数ペア:

[(1, 19270888), (2, 9635444), (4, 4817722), (7, 2752984), (8, 2408861), (13, 1482376), (14, 1376492), (26, 741188), (28, 688246), (52, 370594), (56, 344123), (91, 211768), (103, 187096), (104, 185297), (182, 105884), (206, 93548), (257, 74984), (364, 52942), (412, 46774), (514, 37492), (721, 26728), (728, 26471), (824, 23387), (1028, 18746), (1339, 14392), (1442, 13364), (1799, 10712), (2056, 9373), (2678, 7196), (2884, 6682), (3341, 5768), (3598, 5356)]