1310365960

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{208657}}^1$

素因数の和:208825

約数の個数: 32

約数和(自身を含む): 2967116760

約数和(自身を除く): 1656750800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 6280, 208657, 417314, 834628, 1043285, 1669256, 2086570, 4173140, 8346280, 32759149, 65518298, 131036596, 163795745, 262073192, 327591490, 655182980, 1310365960]

約数ペア:

[(1, 1310365960), (2, 655182980), (4, 327591490), (5, 262073192), (8, 163795745), (10, 131036596), (20, 65518298), (40, 32759149), (157, 8346280), (314, 4173140), (628, 2086570), (785, 1669256), (1256, 1043285), (1570, 834628), (3140, 417314), (6280, 208657)]