1980161590

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{251}}^1\times {\mathrm{71719}}^1$

素因数の和:71988

約数の個数: 32

約数和(自身を含む): 3903863040

約数和(自身を除く): 1923701450

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 251, 502, 1255, 2510, 2761, 5522, 13805, 27610, 71719, 143438, 358595, 717190, 788909, 1577818, 3944545, 7889090, 18001469, 36002938, 90007345, 180014690, 198016159, 396032318, 990080795, 1980161590]

約数ペア:

[(1, 1980161590), (2, 990080795), (5, 396032318), (10, 198016159), (11, 180014690), (22, 90007345), (55, 36002938), (110, 18001469), (251, 7889090), (502, 3944545), (1255, 1577818), (2510, 788909), (2761, 717190), (5522, 358595), (13805, 143438), (27610, 71719)]