80472920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{182893}}^1$

素因数の和:182915

約数の個数: 32

約数和(自身を含む): 197525520

約数和(自身を除く): 117052600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 182893, 365786, 731572, 914465, 1463144, 1828930, 2011823, 3657860, 4023646, 7315720, 8047292, 10059115, 16094584, 20118230, 40236460, 80472920]

約数ペア:

[(1, 80472920), (2, 40236460), (4, 20118230), (5, 16094584), (8, 10059115), (10, 8047292), (11, 7315720), (20, 4023646), (22, 3657860), (40, 2011823), (44, 1828930), (55, 1463144), (88, 914465), (110, 731572), (220, 365786), (440, 182893)]