66804815

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{173}}^1$

素因数の和:272

約数の個数: 64

約数和(自身を含む): 108241920

約数和(自身を除く): 41437105

約数列:

[1, 5, 7, 11, 17, 35, 55, 59, 77, 85, 119, 173, 187, 295, 385, 413, 595, 649, 865, 935, 1003, 1211, 1309, 1903, 2065, 2941, 3245, 4543, 5015, 6055, 6545, 7021, 9515, 10207, 11033, 13321, 14705, 20587, 22715, 32351, 35105, 51035, 55165, 66605, 71449, 77231, 102935, 112277, 161755, 173519, 226457, 357245, 386155, 561385, 785939, 867595, 1132285, 1214633, 1908709, 3929695, 6073165, 9543545, 13360963, 66804815]

約数ペア:

[(1, 66804815), (5, 13360963), (7, 9543545), (11, 6073165), (17, 3929695), (35, 1908709), (55, 1214633), (59, 1132285), (77, 867595), (85, 785939), (119, 561385), (173, 386155), (187, 357245), (295, 226457), (385, 173519), (413, 161755), (595, 112277), (649, 102935), (865, 77231), (935, 71449), (1003, 66605), (1211, 55165), (1309, 51035), (1903, 35105), (2065, 32351), (2941, 22715), (3245, 20587), (4543, 14705), (5015, 13321), (6055, 11033), (6545, 10207), (7021, 9515)]