4180990

素因数分解:

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

素因数の和:408

約数の個数: 32

約数和(自身を含む): 8294400

約数和(自身を除く): 4113410

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 191, 199, 382, 398, 955, 995, 1910, 1990, 2101, 2189, 4202, 4378, 10505, 10945, 21010, 21890, 38009, 76018, 190045, 380090, 418099, 836198, 2090495, 4180990]

約数ペア:

[(1, 4180990), (2, 2090495), (5, 836198), (10, 418099), (11, 380090), (22, 190045), (55, 76018), (110, 38009), (191, 21890), (199, 21010), (382, 10945), (398, 10505), (955, 4378), (995, 4202), (1910, 2189), (1990, 2101)]