20639262335

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{439}}^1\times {\mathrm{677}}^1$

素因数の和:1200

約数の個数: 64

約数和(自身を含む): 28352332800

約数和(自身を除く): 7713070465

約数列:

[1, 5, 17, 19, 43, 85, 95, 215, 323, 439, 677, 731, 817, 1615, 2195, 3385, 3655, 4085, 7463, 8341, 11509, 12863, 13889, 18877, 29111, 37315, 41705, 57545, 64315, 69445, 94385, 141797, 145555, 218671, 297203, 320909, 358663, 494887, 553109, 708985, 1093355, 1486015, 1604545, 1793315, 2474435, 2765545, 5052451, 5646857, 6097271, 9402853, 12779729, 25262255, 28234285, 30486355, 47014265, 63898645, 95996569, 217255393, 242814851, 479982845, 1086276965, 1214074255, 4127852467, 20639262335]

約数ペア:

[(1, 20639262335), (5, 4127852467), (17, 1214074255), (19, 1086276965), (43, 479982845), (85, 242814851), (95, 217255393), (215, 95996569), (323, 63898645), (439, 47014265), (677, 30486355), (731, 28234285), (817, 25262255), (1615, 12779729), (2195, 9402853), (3385, 6097271), (3655, 5646857), (4085, 5052451), (7463, 2765545), (8341, 2474435), (11509, 1793315), (12863, 1604545), (13889, 1486015), (18877, 1093355), (29111, 708985), (37315, 553109), (41705, 494887), (57545, 358663), (64315, 320909), (69445, 297203), (94385, 218671), (141797, 145555)]