18920880

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2389}}^1$

素因数の和:2419

約数の個数: 120

約数和(自身を含む): 69348240

約数和(自身を除く): 50427360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 48, 55, 60, 66, 72, 80, 88, 90, 99, 110, 120, 132, 144, 165, 176, 180, 198, 220, 240, 264, 330, 360, 396, 440, 495, 528, 660, 720, 792, 880, 990, 1320, 1584, 1980, 2389, 2640, 3960, 4778, 7167, 7920, 9556, 11945, 14334, 19112, 21501, 23890, 26279, 28668, 35835, 38224, 43002, 47780, 52558, 57336, 71670, 78837, 86004, 95560, 105116, 107505, 114672, 131395, 143340, 157674, 172008, 191120, 210232, 215010, 236511, 262790, 286680, 315348, 344016, 394185, 420464, 430020, 473022, 525580, 573360, 630696, 788370, 860040, 946044, 1051160, 1182555, 1261392, 1576740, 1720080, 1892088, 2102320, 2365110, 3153480, 3784176, 4730220, 6306960, 9460440, 18920880]

約数ペア:

[(1, 18920880), (2, 9460440), (3, 6306960), (4, 4730220), (5, 3784176), (6, 3153480), (8, 2365110), (9, 2102320), (10, 1892088), (11, 1720080), (12, 1576740), (15, 1261392), (16, 1182555), (18, 1051160), (20, 946044), (22, 860040), (24, 788370), (30, 630696), (33, 573360), (36, 525580), (40, 473022), (44, 430020), (45, 420464), (48, 394185), (55, 344016), (60, 315348), (66, 286680), (72, 262790), (80, 236511), (88, 215010), (90, 210232), (99, 191120), (110, 172008), (120, 157674), (132, 143340), (144, 131395), (165, 114672), (176, 107505), (180, 105116), (198, 95560), (220, 86004), (240, 78837), (264, 71670), (330, 57336), (360, 52558), (396, 47780), (440, 43002), (495, 38224), (528, 35835), (660, 28668), (720, 26279), (792, 23890), (880, 21501), (990, 19112), (1320, 14334), (1584, 11945), (1980, 9556), (2389, 7920), (2640, 7167), (3960, 4778)]