121007920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{691}}^1$

素因数の和:914

約数の個数: 80

約数和(自身を含む): 308908800

約数和(自身を除く): 187900880

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 199, 220, 398, 440, 691, 796, 880, 995, 1382, 1592, 1990, 2189, 2764, 3184, 3455, 3980, 4378, 5528, 6910, 7601, 7960, 8756, 10945, 11056, 13820, 15202, 15920, 17512, 21890, 27640, 30404, 35024, 38005, 43780, 55280, 60808, 76010, 87560, 121616, 137509, 152020, 175120, 275018, 304040, 550036, 608080, 687545, 1100072, 1375090, 1512599, 2200144, 2750180, 3025198, 5500360, 6050396, 7562995, 11000720, 12100792, 15125990, 24201584, 30251980, 60503960, 121007920]

約数ペア:

[(1, 121007920), (2, 60503960), (4, 30251980), (5, 24201584), (8, 15125990), (10, 12100792), (11, 11000720), (16, 7562995), (20, 6050396), (22, 5500360), (40, 3025198), (44, 2750180), (55, 2200144), (80, 1512599), (88, 1375090), (110, 1100072), (176, 687545), (199, 608080), (220, 550036), (398, 304040), (440, 275018), (691, 175120), (796, 152020), (880, 137509), (995, 121616), (1382, 87560), (1592, 76010), (1990, 60808), (2189, 55280), (2764, 43780), (3184, 38005), (3455, 35024), (3980, 30404), (4378, 27640), (5528, 21890), (6910, 17512), (7601, 15920), (7960, 15202), (8756, 13820), (10945, 11056)]