81990034

素因数分解:

$2^1\times 7^3\times {\mathrm{107}}^1\times {\mathrm{1117}}^1$

素因数の和:1247

約数の個数: 32

約数和(自身を含む): 144892800

約数和(自身を除く): 62902766

約数列:

[1, 2, 7, 14, 49, 98, 107, 214, 343, 686, 749, 1117, 1498, 2234, 5243, 7819, 10486, 15638, 36701, 54733, 73402, 109466, 119519, 239038, 383131, 766262, 836633, 1673266, 5856431, 11712862, 40995017, 81990034]

約数ペア:

[(1, 81990034), (2, 40995017), (7, 11712862), (14, 5856431), (49, 1673266), (98, 836633), (107, 766262), (214, 383131), (343, 239038), (686, 119519), (749, 109466), (1117, 73402), (1498, 54733), (2234, 36701), (5243, 15638), (7819, 10486)]