82990960

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{401}}^1$

素因数の和:626

約数の個数: 80

約数和(自身を含む): 209361600

約数和(自身を除く): 126370640

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 199, 208, 260, 398, 401, 520, 796, 802, 995, 1040, 1592, 1604, 1990, 2005, 2587, 3184, 3208, 3980, 4010, 5174, 5213, 6416, 7960, 8020, 10348, 10426, 12935, 15920, 16040, 20696, 20852, 25870, 26065, 32080, 41392, 41704, 51740, 52130, 79799, 83408, 103480, 104260, 159598, 206960, 208520, 319196, 398995, 417040, 638392, 797990, 1037387, 1276784, 1595980, 2074774, 3191960, 4149548, 5186935, 6383920, 8299096, 10373870, 16598192, 20747740, 41495480, 82990960]

約数ペア:

[(1, 82990960), (2, 41495480), (4, 20747740), (5, 16598192), (8, 10373870), (10, 8299096), (13, 6383920), (16, 5186935), (20, 4149548), (26, 3191960), (40, 2074774), (52, 1595980), (65, 1276784), (80, 1037387), (104, 797990), (130, 638392), (199, 417040), (208, 398995), (260, 319196), (398, 208520), (401, 206960), (520, 159598), (796, 104260), (802, 103480), (995, 83408), (1040, 79799), (1592, 52130), (1604, 51740), (1990, 41704), (2005, 41392), (2587, 32080), (3184, 26065), (3208, 25870), (3980, 20852), (4010, 20696), (5174, 16040), (5213, 15920), (6416, 12935), (7960, 10426), (8020, 10348)]