31310840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71161}}^1$

素因数の和:71183

約数の個数: 32

約数和(自身を含む): 76854960

約数和(自身を除く): 45544120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 71161, 142322, 284644, 355805, 569288, 711610, 782771, 1423220, 1565542, 2846440, 3131084, 3913855, 6262168, 7827710, 15655420, 31310840]

約数ペア:

[(1, 31310840), (2, 15655420), (4, 7827710), (5, 6262168), (8, 3913855), (10, 3131084), (11, 2846440), (20, 1565542), (22, 1423220), (40, 782771), (44, 711610), (55, 569288), (88, 355805), (110, 284644), (220, 142322), (440, 71161)]