256755950

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{37}}^2$

素因数の和:139

約数の個数: 108

約数和(自身を含む): 556901856

約数和(自身を除く): 300145906

約数列:

[1, 2, 5, 10, 11, 22, 25, 31, 37, 50, 55, 62, 74, 110, 121, 155, 185, 242, 275, 310, 341, 370, 407, 550, 605, 682, 775, 814, 925, 1147, 1210, 1369, 1550, 1705, 1850, 2035, 2294, 2738, 3025, 3410, 3751, 4070, 4477, 5735, 6050, 6845, 7502, 8525, 8954, 10175, 11470, 12617, 13690, 15059, 17050, 18755, 20350, 22385, 25234, 28675, 30118, 34225, 37510, 42439, 44770, 57350, 63085, 68450, 75295, 84878, 93775, 111925, 126170, 138787, 150590, 165649, 187550, 212195, 223850, 277574, 315425, 331298, 376475, 424390, 466829, 630850, 693935, 752950, 828245, 933658, 1060975, 1387870, 1656490, 2121950, 2334145, 3469675, 4141225, 4668290, 5135119, 6939350, 8282450, 10270238, 11670725, 23341450, 25675595, 51351190, 128377975, 256755950]

約数ペア:

[(1, 256755950), (2, 128377975), (5, 51351190), (10, 25675595), (11, 23341450), (22, 11670725), (25, 10270238), (31, 8282450), (37, 6939350), (50, 5135119), (55, 4668290), (62, 4141225), (74, 3469675), (110, 2334145), (121, 2121950), (155, 1656490), (185, 1387870), (242, 1060975), (275, 933658), (310, 828245), (341, 752950), (370, 693935), (407, 630850), (550, 466829), (605, 424390), (682, 376475), (775, 331298), (814, 315425), (925, 277574), (1147, 223850), (1210, 212195), (1369, 187550), (1550, 165649), (1705, 150590), (1850, 138787), (2035, 126170), (2294, 111925), (2738, 93775), (3025, 84878), (3410, 75295), (3751, 68450), (4070, 63085), (4477, 57350), (5735, 44770), (6050, 42439), (6845, 37510), (7502, 34225), (8525, 30118), (8954, 28675), (10175, 25234), (11470, 22385), (12617, 20350), (13690, 18755), (15059, 17050)]