127987995

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{173}}^1$

素因数の和:292

約数の個数: 64

約数和(自身を含む): 223432704

約数和(自身を除く): 95444709

約数列:

[1, 3, 5, 15, 31, 37, 43, 93, 111, 129, 155, 173, 185, 215, 465, 519, 555, 645, 865, 1147, 1333, 1591, 2595, 3441, 3999, 4773, 5363, 5735, 6401, 6665, 7439, 7955, 16089, 17205, 19203, 19995, 22317, 23865, 26815, 32005, 37195, 49321, 80445, 96015, 111585, 147963, 198431, 230609, 246605, 275243, 595293, 691827, 739815, 825729, 992155, 1153045, 1376215, 2976465, 3459135, 4128645, 8532533, 25597599, 42662665, 127987995]

約数ペア:

[(1, 127987995), (3, 42662665), (5, 25597599), (15, 8532533), (31, 4128645), (37, 3459135), (43, 2976465), (93, 1376215), (111, 1153045), (129, 992155), (155, 825729), (173, 739815), (185, 691827), (215, 595293), (465, 275243), (519, 246605), (555, 230609), (645, 198431), (865, 147963), (1147, 111585), (1333, 96015), (1591, 80445), (2595, 49321), (3441, 37195), (3999, 32005), (4773, 26815), (5363, 23865), (5735, 22317), (6401, 19995), (6665, 19203), (7439, 17205), (7955, 16089)]