208534785

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{409}}^1\times {\mathrm{1789}}^1$

素因数の和:2225

約数の個数: 32

約数和(自身を含む): 352272000

約数和(自身を除く): 143737215

約数列:

[1, 3, 5, 15, 19, 57, 95, 285, 409, 1227, 1789, 2045, 5367, 6135, 7771, 8945, 23313, 26835, 33991, 38855, 101973, 116565, 169955, 509865, 731701, 2195103, 3658505, 10975515, 13902319, 41706957, 69511595, 208534785]

約数ペア:

[(1, 208534785), (3, 69511595), (5, 41706957), (15, 13902319), (19, 10975515), (57, 3658505), (95, 2195103), (285, 731701), (409, 509865), (1227, 169955), (1789, 116565), (2045, 101973), (5367, 38855), (6135, 33991), (7771, 26835), (8945, 23313)]