81813270

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{331}}^1$

素因数の和:466

約数の個数: 128

約数和(自身を含む): 247836672

約数和(自身を除く): 166023402

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 14, 15, 21, 22, 30, 33, 35, 42, 55, 66, 70, 77, 105, 107, 110, 154, 165, 210, 214, 231, 321, 330, 331, 385, 462, 535, 642, 662, 749, 770, 993, 1070, 1155, 1177, 1498, 1605, 1655, 1986, 2247, 2310, 2317, 2354, 3210, 3310, 3531, 3641, 3745, 4494, 4634, 4965, 5885, 6951, 7062, 7282, 7490, 8239, 9930, 10923, 11235, 11585, 11770, 13902, 16478, 17655, 18205, 21846, 22470, 23170, 24717, 25487, 34755, 35310, 35417, 36410, 41195, 49434, 50974, 54615, 69510, 70834, 76461, 82390, 106251, 109230, 123585, 127435, 152922, 177085, 212502, 247170, 247919, 254870, 354170, 382305, 389587, 495838, 531255, 743757, 764610, 779174, 1062510, 1168761, 1239595, 1487514, 1947935, 2337522, 2479190, 2727109, 3718785, 3895870, 5454218, 5843805, 7437570, 8181327, 11687610, 13635545, 16362654, 27271090, 40906635, 81813270]

約数ペア:

[(1, 81813270), (2, 40906635), (3, 27271090), (5, 16362654), (6, 13635545), (7, 11687610), (10, 8181327), (11, 7437570), (14, 5843805), (15, 5454218), (21, 3895870), (22, 3718785), (30, 2727109), (33, 2479190), (35, 2337522), (42, 1947935), (55, 1487514), (66, 1239595), (70, 1168761), (77, 1062510), (105, 779174), (107, 764610), (110, 743757), (154, 531255), (165, 495838), (210, 389587), (214, 382305), (231, 354170), (321, 254870), (330, 247919), (331, 247170), (385, 212502), (462, 177085), (535, 152922), (642, 127435), (662, 123585), (749, 109230), (770, 106251), (993, 82390), (1070, 76461), (1155, 70834), (1177, 69510), (1498, 54615), (1605, 50974), (1655, 49434), (1986, 41195), (2247, 36410), (2310, 35417), (2317, 35310), (2354, 34755), (3210, 25487), (3310, 24717), (3531, 23170), (3641, 22470), (3745, 21846), (4494, 18205), (4634, 17655), (4965, 16478), (5885, 13902), (6951, 11770), (7062, 11585), (7282, 11235), (7490, 10923), (8239, 9930)]