20758404

素因数分解:

$2^2\times 3^1\times {\mathrm{53}}^1\times {\mathrm{127}}^1\times {\mathrm{257}}^1$

素因数の和:444

約数の個数: 48

約数和(自身を含む): 49932288

約数和(自身を除く): 29173884

約数列:

[1, 2, 3, 4, 6, 12, 53, 106, 127, 159, 212, 254, 257, 318, 381, 508, 514, 636, 762, 771, 1028, 1524, 1542, 3084, 6731, 13462, 13621, 20193, 26924, 27242, 32639, 40386, 40863, 54484, 65278, 80772, 81726, 97917, 130556, 163452, 195834, 391668, 1729867, 3459734, 5189601, 6919468, 10379202, 20758404]

約数ペア:

[(1, 20758404), (2, 10379202), (3, 6919468), (4, 5189601), (6, 3459734), (12, 1729867), (53, 391668), (106, 195834), (127, 163452), (159, 130556), (212, 97917), (254, 81726), (257, 80772), (318, 65278), (381, 54484), (508, 40863), (514, 40386), (636, 32639), (762, 27242), (771, 26924), (1028, 20193), (1524, 13621), (1542, 13462), (3084, 6731)]