8107220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{857}}^1$

素因数の和:920

約数の個数: 48

約数和(自身を含む): 19027008

約数和(自身を除く): 10919788

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 172, 215, 220, 430, 473, 857, 860, 946, 1714, 1892, 2365, 3428, 4285, 4730, 8570, 9427, 9460, 17140, 18854, 36851, 37708, 47135, 73702, 94270, 147404, 184255, 188540, 368510, 405361, 737020, 810722, 1621444, 2026805, 4053610, 8107220]

約数ペア:

[(1, 8107220), (2, 4053610), (4, 2026805), (5, 1621444), (10, 810722), (11, 737020), (20, 405361), (22, 368510), (43, 188540), (44, 184255), (55, 147404), (86, 94270), (110, 73702), (172, 47135), (215, 37708), (220, 36851), (430, 18854), (473, 17140), (857, 9460), (860, 9427), (946, 8570), (1714, 4730), (1892, 4285), (2365, 3428)]