1720221320

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{313909}}^1$

素因数の和:314057

約数の個数: 32

約数和(自身を含む): 3898762200

約数和(自身を除く): 2178540880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2740, 5480, 313909, 627818, 1255636, 1569545, 2511272, 3139090, 6278180, 12556360, 43005533, 86011066, 172022132, 215027665, 344044264, 430055330, 860110660, 1720221320]

約数ペア:

[(1, 1720221320), (2, 860110660), (4, 430055330), (5, 344044264), (8, 215027665), (10, 172022132), (20, 86011066), (40, 43005533), (137, 12556360), (274, 6278180), (548, 3139090), (685, 2511272), (1096, 1569545), (1370, 1255636), (2740, 627818), (5480, 313909)]