81027320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{184153}}^1$

素因数の和:184175

約数の個数: 32

約数和(自身を含む): 198886320

約数和(自身を除く): 117859000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 184153, 368306, 736612, 920765, 1473224, 1841530, 2025683, 3683060, 4051366, 7366120, 8102732, 10128415, 16205464, 20256830, 40513660, 81027320]

約数ペア:

[(1, 81027320), (2, 40513660), (4, 20256830), (5, 16205464), (8, 10128415), (10, 8102732), (11, 7366120), (20, 4051366), (22, 3683060), (40, 2025683), (44, 1841530), (55, 1473224), (88, 920765), (110, 736612), (220, 368306), (440, 184153)]