80490520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{182933}}^1$

素因数の和:182955

約数の個数: 32

約数和(自身を含む): 197568720

約数和(自身を除く): 117078200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 182933, 365866, 731732, 914665, 1463464, 1829330, 2012263, 3658660, 4024526, 7317320, 8049052, 10061315, 16098104, 20122630, 40245260, 80490520]

約数ペア:

[(1, 80490520), (2, 40245260), (4, 20122630), (5, 16098104), (8, 10061315), (10, 8049052), (11, 7317320), (20, 4024526), (22, 3658660), (40, 2012263), (44, 1829330), (55, 1463464), (88, 914665), (110, 731732), (220, 365866), (440, 182933)]