28783784

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{409}}^1\times {\mathrm{463}}^1$

素因数の和:897

約数の個数: 32

約数和(自身を含む): 57072000

約数和(自身を除く): 28288216

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 409, 463, 818, 926, 1636, 1852, 3272, 3704, 7771, 8797, 15542, 17594, 31084, 35188, 62168, 70376, 189367, 378734, 757468, 1514936, 3597973, 7195946, 14391892, 28783784]

約数ペア:

[(1, 28783784), (2, 14391892), (4, 7195946), (8, 3597973), (19, 1514936), (38, 757468), (76, 378734), (152, 189367), (409, 70376), (463, 62168), (818, 35188), (926, 31084), (1636, 17594), (1852, 15542), (3272, 8797), (3704, 7771)]