80921005

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{1531}}^1$

素因数の和:1609

約数の個数: 24

約数和(自身を含む): 109531872

約数和(自身を除く): 28610867

約数列:

[1, 5, 11, 31, 55, 155, 341, 961, 1531, 1705, 4805, 7655, 10571, 16841, 47461, 52855, 84205, 237305, 522071, 1471291, 2610355, 7356455, 16184201, 80921005]

約数ペア:

[(1, 80921005), (5, 16184201), (11, 7356455), (31, 2610355), (55, 1471291), (155, 522071), (341, 237305), (961, 84205), (1531, 52855), (1705, 47461), (4805, 16841), (7655, 10571)]