1640786980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{523}}^1\times {\mathrm{22409}}^1$

素因数の和:22948

約数の個数: 48

約数和(自身を含む): 3945594240

約数和(自身を除く): 2304807260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 523, 1046, 2092, 2615, 3661, 5230, 7322, 10460, 14644, 18305, 22409, 36610, 44818, 73220, 89636, 112045, 156863, 224090, 313726, 448180, 627452, 784315, 1568630, 3137260, 11719907, 23439814, 46879628, 58599535, 82039349, 117199070, 164078698, 234398140, 328157396, 410196745, 820393490, 1640786980]

約数ペア:

[(1, 1640786980), (2, 820393490), (4, 410196745), (5, 328157396), (7, 234398140), (10, 164078698), (14, 117199070), (20, 82039349), (28, 58599535), (35, 46879628), (70, 23439814), (140, 11719907), (523, 3137260), (1046, 1568630), (2092, 784315), (2615, 627452), (3661, 448180), (5230, 313726), (7322, 224090), (10460, 156863), (14644, 112045), (18305, 89636), (22409, 73220), (36610, 44818)]