256543245

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{814423}}^1$

素因数の和:814441

約数の個数: 24

約数和(自身を含む): 508200576

約数和(自身を除く): 251657331

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 814423, 2443269, 4072115, 5700961, 7329807, 12216345, 17102883, 28504805, 36649035, 51308649, 85514415, 256543245]

約数ペア:

[(1, 256543245), (3, 85514415), (5, 51308649), (7, 36649035), (9, 28504805), (15, 17102883), (21, 12216345), (35, 7329807), (45, 5700961), (63, 4072115), (105, 2443269), (315, 814423)]