8361980

素因数分解:

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

素因数の和:410

約数の個数: 48

約数和(自身を含む): 19353600

約数和(自身を除く): 10991620

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 191, 199, 220, 382, 398, 764, 796, 955, 995, 1910, 1990, 2101, 2189, 3820, 3980, 4202, 4378, 8404, 8756, 10505, 10945, 21010, 21890, 38009, 42020, 43780, 76018, 152036, 190045, 380090, 418099, 760180, 836198, 1672396, 2090495, 4180990, 8361980]

約数ペア:

[(1, 8361980), (2, 4180990), (4, 2090495), (5, 1672396), (10, 836198), (11, 760180), (20, 418099), (22, 380090), (44, 190045), (55, 152036), (110, 76018), (191, 43780), (199, 42020), (220, 38009), (382, 21890), (398, 21010), (764, 10945), (796, 10505), (955, 8756), (995, 8404), (1910, 4378), (1990, 4202), (2101, 3980), (2189, 3820)]