128239920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{277}}^1\times {\mathrm{643}}^1$

素因数の和:939

約数の個数: 120

約数和(自身を含む): 432899376

約数和(自身を除く): 304659456

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 277, 360, 554, 643, 720, 831, 1108, 1286, 1385, 1662, 1929, 2216, 2493, 2572, 2770, 3215, 3324, 3858, 4155, 4432, 4986, 5144, 5540, 5787, 6430, 6648, 7716, 8310, 9645, 9972, 10288, 11080, 11574, 12465, 12860, 13296, 15432, 16620, 19290, 19944, 22160, 23148, 24930, 25720, 28935, 30864, 33240, 38580, 39888, 46296, 49860, 51440, 57870, 66480, 77160, 92592, 99720, 115740, 154320, 178111, 199440, 231480, 356222, 462960, 534333, 712444, 890555, 1068666, 1424888, 1602999, 1781110, 2137332, 2671665, 2849776, 3205998, 3562220, 4274664, 5343330, 6411996, 7124440, 8014995, 8549328, 10686660, 12823992, 14248880, 16029990, 21373320, 25647984, 32059980, 42746640, 64119960, 128239920]

約数ペア:

[(1, 128239920), (2, 64119960), (3, 42746640), (4, 32059980), (5, 25647984), (6, 21373320), (8, 16029990), (9, 14248880), (10, 12823992), (12, 10686660), (15, 8549328), (16, 8014995), (18, 7124440), (20, 6411996), (24, 5343330), (30, 4274664), (36, 3562220), (40, 3205998), (45, 2849776), (48, 2671665), (60, 2137332), (72, 1781110), (80, 1602999), (90, 1424888), (120, 1068666), (144, 890555), (180, 712444), (240, 534333), (277, 462960), (360, 356222), (554, 231480), (643, 199440), (720, 178111), (831, 154320), (1108, 115740), (1286, 99720), (1385, 92592), (1662, 77160), (1929, 66480), (2216, 57870), (2493, 51440), (2572, 49860), (2770, 46296), (3215, 39888), (3324, 38580), (3858, 33240), (4155, 30864), (4432, 28935), (4986, 25720), (5144, 24930), (5540, 23148), (5787, 22160), (6430, 19944), (6648, 19290), (7716, 16620), (8310, 15432), (9645, 13296), (9972, 12860), (10288, 12465), (11080, 11574)]