20123748

素因数分解:

$2^2\times 3^3\times {\mathrm{389}}^1\times {\mathrm{479}}^1$

素因数の和:881

約数の個数: 48

約数和(自身を含む): 52416000

約数和(自身を除く): 32292252

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 389, 479, 778, 958, 1167, 1437, 1556, 1916, 2334, 2874, 3501, 4311, 4668, 5748, 7002, 8622, 10503, 12933, 14004, 17244, 21006, 25866, 42012, 51732, 186331, 372662, 558993, 745324, 1117986, 1676979, 2235972, 3353958, 5030937, 6707916, 10061874, 20123748]

約数ペア:

[(1, 20123748), (2, 10061874), (3, 6707916), (4, 5030937), (6, 3353958), (9, 2235972), (12, 1676979), (18, 1117986), (27, 745324), (36, 558993), (54, 372662), (108, 186331), (389, 51732), (479, 42012), (778, 25866), (958, 21006), (1167, 17244), (1437, 14004), (1556, 12933), (1916, 10503), (2334, 8622), (2874, 7002), (3501, 5748), (4311, 4668)]