209260905

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{1987}}^1$

素因数の和:2078

約数の個数: 64

約数和(自身を含む): 412231680

約数和(自身を除く): 202970775

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 51, 59, 85, 105, 119, 177, 255, 295, 357, 413, 595, 885, 1003, 1239, 1785, 1987, 2065, 3009, 5015, 5961, 6195, 7021, 9935, 13909, 15045, 21063, 29805, 33779, 35105, 41727, 69545, 101337, 105315, 117233, 168895, 208635, 236453, 351699, 506685, 586165, 709359, 820631, 1182265, 1758495, 1992961, 2461893, 3546795, 4103155, 5978883, 9964805, 12309465, 13950727, 29894415, 41852181, 69753635, 209260905]

約数ペア:

[(1, 209260905), (3, 69753635), (5, 41852181), (7, 29894415), (15, 13950727), (17, 12309465), (21, 9964805), (35, 5978883), (51, 4103155), (59, 3546795), (85, 2461893), (105, 1992961), (119, 1758495), (177, 1182265), (255, 820631), (295, 709359), (357, 586165), (413, 506685), (595, 351699), (885, 236453), (1003, 208635), (1239, 168895), (1785, 117233), (1987, 105315), (2065, 101337), (3009, 69545), (5015, 41727), (5961, 35105), (6195, 33779), (7021, 29805), (9935, 21063), (13909, 15045)]