66808280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:337

約数の個数: 128

約数和(自身を含む): 190080000

約数和(自身を除く): 123271720

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 109, 110, 140, 154, 199, 218, 220, 280, 308, 385, 398, 436, 440, 545, 616, 763, 770, 796, 872, 995, 1090, 1199, 1393, 1526, 1540, 1592, 1990, 2180, 2189, 2398, 2786, 3052, 3080, 3815, 3980, 4360, 4378, 4796, 5572, 5995, 6104, 6965, 7630, 7960, 8393, 8756, 9592, 10945, 11144, 11990, 13930, 15260, 15323, 16786, 17512, 21691, 21890, 23980, 27860, 30520, 30646, 33572, 41965, 43382, 43780, 47960, 55720, 61292, 67144, 76615, 83930, 86764, 87560, 108455, 122584, 151837, 153230, 167860, 173528, 216910, 238601, 303674, 306460, 335720, 433820, 477202, 607348, 612920, 759185, 867640, 954404, 1193005, 1214696, 1518370, 1670207, 1908808, 2386010, 3036740, 3340414, 4772020, 6073480, 6680828, 8351035, 9544040, 13361656, 16702070, 33404140, 66808280]

約数ペア:

[(1, 66808280), (2, 33404140), (4, 16702070), (5, 13361656), (7, 9544040), (8, 8351035), (10, 6680828), (11, 6073480), (14, 4772020), (20, 3340414), (22, 3036740), (28, 2386010), (35, 1908808), (40, 1670207), (44, 1518370), (55, 1214696), (56, 1193005), (70, 954404), (77, 867640), (88, 759185), (109, 612920), (110, 607348), (140, 477202), (154, 433820), (199, 335720), (218, 306460), (220, 303674), (280, 238601), (308, 216910), (385, 173528), (398, 167860), (436, 153230), (440, 151837), (545, 122584), (616, 108455), (763, 87560), (770, 86764), (796, 83930), (872, 76615), (995, 67144), (1090, 61292), (1199, 55720), (1393, 47960), (1526, 43780), (1540, 43382), (1592, 41965), (1990, 33572), (2180, 30646), (2189, 30520), (2398, 27860), (2786, 23980), (3052, 21890), (3080, 21691), (3815, 17512), (3980, 16786), (4360, 15323), (4378, 15260), (4796, 13930), (5572, 11990), (5995, 11144), (6104, 10945), (6965, 9592), (7630, 8756), (7960, 8393)]