1987920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{251}}^1$

素因数の和:281

約数の個数: 120

約数和(自身を含む): 7312032

約数和(自身を除く): 5324112

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, 251, 264, 330, 360, 396, 440, 495, 502, 528, 660, 720, 753, 792, 880, 990, 1004, 1255, 1320, 1506, 1584, 1980, 2008, 2259, 2510, 2640, 2761, 3012, 3765, 3960, 4016, 4518, 5020, 5522, 6024, 7530, 7920, 8283, 9036, 10040, 11044, 11295, 12048, 13805, 15060, 16566, 18072, 20080, 22088, 22590, 24849, 27610, 30120, 33132, 36144, 41415, 44176, 45180, 49698, 55220, 60240, 66264, 82830, 90360, 99396, 110440, 124245, 132528, 165660, 180720, 198792, 220880, 248490, 331320, 397584, 496980, 662640, 993960, 1987920]

約数ペア:

[(1, 1987920), (2, 993960), (3, 662640), (4, 496980), (5, 397584), (6, 331320), (8, 248490), (9, 220880), (10, 198792), (11, 180720), (12, 165660), (15, 132528), (16, 124245), (18, 110440), (20, 99396), (22, 90360), (24, 82830), (30, 66264), (33, 60240), (36, 55220), (40, 49698), (44, 45180), (45, 44176), (48, 41415), (55, 36144), (60, 33132), (66, 30120), (72, 27610), (80, 24849), (88, 22590), (90, 22088), (99, 20080), (110, 18072), (120, 16566), (132, 15060), (144, 13805), (165, 12048), (176, 11295), (180, 11044), (198, 10040), (220, 9036), (240, 8283), (251, 7920), (264, 7530), (330, 6024), (360, 5522), (396, 5020), (440, 4518), (495, 4016), (502, 3960), (528, 3765), (660, 3012), (720, 2761), (753, 2640), (792, 2510), (880, 2259), (990, 2008), (1004, 1980), (1255, 1584), (1320, 1506)]