289657480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1034491}}^1$

素因数の和:1034509

約数の個数: 32

約数和(自身を含む): 744834240

約数和(自身を除く): 455176760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1034491, 2068982, 4137964, 5172455, 7241437, 8275928, 10344910, 14482874, 20689820, 28965748, 36207185, 41379640, 57931496, 72414370, 144828740, 289657480]

約数ペア:

[(1, 289657480), (2, 144828740), (4, 72414370), (5, 57931496), (7, 41379640), (8, 36207185), (10, 28965748), (14, 20689820), (20, 14482874), (28, 10344910), (35, 8275928), (40, 7241437), (56, 5172455), (70, 4137964), (140, 2068982), (280, 1034491)]