16723960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{199}}^1$

素因数の和:412

約数の個数: 64

約数和(自身を含む): 41472000

約数和(自身を除く): 24748040

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 191, 199, 220, 382, 398, 440, 764, 796, 955, 995, 1528, 1592, 1910, 1990, 2101, 2189, 3820, 3980, 4202, 4378, 7640, 7960, 8404, 8756, 10505, 10945, 16808, 17512, 21010, 21890, 38009, 42020, 43780, 76018, 84040, 87560, 152036, 190045, 304072, 380090, 418099, 760180, 836198, 1520360, 1672396, 2090495, 3344792, 4180990, 8361980, 16723960]

約数ペア:

[(1, 16723960), (2, 8361980), (4, 4180990), (5, 3344792), (8, 2090495), (10, 1672396), (11, 1520360), (20, 836198), (22, 760180), (40, 418099), (44, 380090), (55, 304072), (88, 190045), (110, 152036), (191, 87560), (199, 84040), (220, 76018), (382, 43780), (398, 42020), (440, 38009), (764, 21890), (796, 21010), (955, 17512), (995, 16808), (1528, 10945), (1592, 10505), (1910, 8756), (1990, 8404), (2101, 7960), (2189, 7640), (3820, 4378), (3980, 4202)]