1616368

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{409}}^1$

素因数の和:449

約数の個数: 40

約数和(自身を含む): 3558800

約数和(自身を除く): 1942432

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 409, 494, 818, 988, 1636, 1976, 3272, 3952, 5317, 6544, 7771, 10634, 15542, 21268, 31084, 42536, 62168, 85072, 101023, 124336, 202046, 404092, 808184, 1616368]

約数ペア:

[(1, 1616368), (2, 808184), (4, 404092), (8, 202046), (13, 124336), (16, 101023), (19, 85072), (26, 62168), (38, 42536), (52, 31084), (76, 21268), (104, 15542), (152, 10634), (208, 7771), (247, 6544), (304, 5317), (409, 3952), (494, 3272), (818, 1976), (988, 1636)]