687342020

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{373}}^1\times {\mathrm{463}}^1$

素因数の和:1044

約数の個数: 48

約数和(自身を含む): 1457702400

約数和(自身を除く): 770360380

約数列:

[1, 2, 4, 5, 10, 20, 199, 373, 398, 463, 746, 796, 926, 995, 1492, 1852, 1865, 1990, 2315, 3730, 3980, 4630, 7460, 9260, 74227, 92137, 148454, 172699, 184274, 296908, 345398, 368548, 371135, 460685, 690796, 742270, 863495, 921370, 1484540, 1726990, 1842740, 3453980, 34367101, 68734202, 137468404, 171835505, 343671010, 687342020]

約数ペア:

[(1, 687342020), (2, 343671010), (4, 171835505), (5, 137468404), (10, 68734202), (20, 34367101), (199, 3453980), (373, 1842740), (398, 1726990), (463, 1484540), (746, 921370), (796, 863495), (926, 742270), (995, 690796), (1492, 460685), (1852, 371135), (1865, 368548), (1990, 345398), (2315, 296908), (3730, 184274), (3980, 172699), (4630, 148454), (7460, 92137), (9260, 74227)]