1249720

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{199}}^1$

素因数の和:367

約数の個数: 32

約数和(自身を含む): 2844000

約数和(自身を除く): 1594280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 199, 314, 398, 628, 785, 796, 995, 1256, 1570, 1592, 1990, 3140, 3980, 6280, 7960, 31243, 62486, 124972, 156215, 249944, 312430, 624860, 1249720]

約数ペア:

[(1, 1249720), (2, 624860), (4, 312430), (5, 249944), (8, 156215), (10, 124972), (20, 62486), (40, 31243), (157, 7960), (199, 6280), (314, 3980), (398, 3140), (628, 1990), (785, 1592), (796, 1570), (995, 1256)]