208038580

素因数分解:

$2^2\times 5^1\times {\mathrm{167}}^1\times {\mathrm{199}}^1\times {\mathrm{313}}^1$

素因数の和:688

約数の個数: 48

約数和(自身を含む): 443116800

約数和(自身を除く): 235078220

約数列:

[1, 2, 4, 5, 10, 20, 167, 199, 313, 334, 398, 626, 668, 796, 835, 995, 1252, 1565, 1670, 1990, 3130, 3340, 3980, 6260, 33233, 52271, 62287, 66466, 104542, 124574, 132932, 166165, 209084, 249148, 261355, 311435, 332330, 522710, 622870, 664660, 1045420, 1245740, 10401929, 20803858, 41607716, 52009645, 104019290, 208038580]

約数ペア:

[(1, 208038580), (2, 104019290), (4, 52009645), (5, 41607716), (10, 20803858), (20, 10401929), (167, 1245740), (199, 1045420), (313, 664660), (334, 622870), (398, 522710), (626, 332330), (668, 311435), (796, 261355), (835, 249148), (995, 209084), (1252, 166165), (1565, 132932), (1670, 124574), (1990, 104542), (3130, 66466), (3340, 62287), (3980, 52271), (6260, 33233)]