18966256

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{701}}^1$

素因数の和:817

約数の個数: 40

約数和(自身を含む): 39171600

約数和(自身を除く): 20205344

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 89, 152, 178, 304, 356, 701, 712, 1402, 1424, 1691, 2804, 3382, 5608, 6764, 11216, 13319, 13528, 26638, 27056, 53276, 62389, 106552, 124778, 213104, 249556, 499112, 998224, 1185391, 2370782, 4741564, 9483128, 18966256]

約数ペア:

[(1, 18966256), (2, 9483128), (4, 4741564), (8, 2370782), (16, 1185391), (19, 998224), (38, 499112), (76, 249556), (89, 213104), (152, 124778), (178, 106552), (304, 62389), (356, 53276), (701, 27056), (712, 26638), (1402, 13528), (1424, 13319), (1691, 11216), (2804, 6764), (3382, 5608)]