28354205

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:277

約数の個数: 32

約数和(自身を含む): 38631168

約数和(自身を除く): 10276963

約数列:

[1, 5, 11, 53, 55, 71, 137, 265, 355, 583, 685, 781, 1507, 2915, 3763, 3905, 7261, 7535, 9727, 18815, 36305, 41393, 48635, 79871, 106997, 206965, 399355, 515531, 534985, 2577655, 5670841, 28354205]

約数ペア:

[(1, 28354205), (5, 5670841), (11, 2577655), (53, 534985), (55, 515531), (71, 399355), (137, 206965), (265, 106997), (355, 79871), (583, 48635), (685, 41393), (781, 36305), (1507, 18815), (2915, 9727), (3763, 7535), (3905, 7261)]