28314220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{719}}^1$

素因数の和:918

約数の個数: 48

約数和(自身を含む): 65318400

約数和(自身を除く): 37004180

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 179, 220, 358, 716, 719, 895, 1438, 1790, 1969, 2876, 3580, 3595, 3938, 7190, 7876, 7909, 9845, 14380, 15818, 19690, 31636, 39380, 39545, 79090, 128701, 158180, 257402, 514804, 643505, 1287010, 1415711, 2574020, 2831422, 5662844, 7078555, 14157110, 28314220]

約数ペア:

[(1, 28314220), (2, 14157110), (4, 7078555), (5, 5662844), (10, 2831422), (11, 2574020), (20, 1415711), (22, 1287010), (44, 643505), (55, 514804), (110, 257402), (179, 158180), (220, 128701), (358, 79090), (716, 39545), (719, 39380), (895, 31636), (1438, 19690), (1790, 15818), (1969, 14380), (2876, 9845), (3580, 7909), (3595, 7876), (3938, 7190)]