201998740

素因数分解:

$2^2\times 5^1\times {\mathrm{151}}^1\times {\mathrm{211}}^1\times {\mathrm{317}}^1$

素因数の和:688

約数の個数: 48

約数和(自身を含む): 430383744

約数和(自身を除く): 228385004

約数列:

[1, 2, 4, 5, 10, 20, 151, 211, 302, 317, 422, 604, 634, 755, 844, 1055, 1268, 1510, 1585, 2110, 3020, 3170, 4220, 6340, 31861, 47867, 63722, 66887, 95734, 127444, 133774, 159305, 191468, 239335, 267548, 318610, 334435, 478670, 637220, 668870, 957340, 1337740, 10099937, 20199874, 40399748, 50499685, 100999370, 201998740]

約数ペア:

[(1, 201998740), (2, 100999370), (4, 50499685), (5, 40399748), (10, 20199874), (20, 10099937), (151, 1337740), (211, 957340), (302, 668870), (317, 637220), (422, 478670), (604, 334435), (634, 318610), (755, 267548), (844, 239335), (1055, 191468), (1268, 159305), (1510, 133774), (1585, 127444), (2110, 95734), (3020, 66887), (3170, 63722), (4220, 47867), (6340, 31861)]