81580338

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{307}}^1$

素因数の和:381

約数の個数: 128

約数和(自身を含む): 224716800

約数和(自身を除く): 143136462

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 19, 21, 27, 37, 38, 42, 54, 57, 63, 74, 111, 114, 126, 133, 171, 189, 222, 259, 266, 307, 333, 342, 378, 399, 513, 518, 614, 666, 703, 777, 798, 921, 999, 1026, 1197, 1406, 1554, 1842, 1998, 2109, 2149, 2331, 2394, 2763, 3591, 4218, 4298, 4662, 4921, 5526, 5833, 6327, 6447, 6993, 7182, 8289, 9842, 11359, 11666, 12654, 12894, 13986, 14763, 16578, 17499, 18981, 19341, 22718, 29526, 34077, 34998, 37962, 38682, 40831, 44289, 52497, 58023, 68154, 79513, 81662, 88578, 102231, 104994, 116046, 122493, 132867, 157491, 159026, 204462, 215821, 238539, 244986, 265734, 306693, 314982, 367479, 431642, 477078, 613386, 647463, 715617, 734958, 1102437, 1294926, 1431234, 1510747, 1942389, 2146851, 2204874, 3021494, 3884778, 4293702, 4532241, 5827167, 9064482, 11654334, 13596723, 27193446, 40790169, 81580338]

約数ペア:

[(1, 81580338), (2, 40790169), (3, 27193446), (6, 13596723), (7, 11654334), (9, 9064482), (14, 5827167), (18, 4532241), (19, 4293702), (21, 3884778), (27, 3021494), (37, 2204874), (38, 2146851), (42, 1942389), (54, 1510747), (57, 1431234), (63, 1294926), (74, 1102437), (111, 734958), (114, 715617), (126, 647463), (133, 613386), (171, 477078), (189, 431642), (222, 367479), (259, 314982), (266, 306693), (307, 265734), (333, 244986), (342, 238539), (378, 215821), (399, 204462), (513, 159026), (518, 157491), (614, 132867), (666, 122493), (703, 116046), (777, 104994), (798, 102231), (921, 88578), (999, 81662), (1026, 79513), (1197, 68154), (1406, 58023), (1554, 52497), (1842, 44289), (1998, 40831), (2109, 38682), (2149, 37962), (2331, 34998), (2394, 34077), (2763, 29526), (3591, 22718), (4218, 19341), (4298, 18981), (4662, 17499), (4921, 16578), (5526, 14763), (5833, 13986), (6327, 12894), (6447, 12654), (6993, 11666), (7182, 11359), (8289, 9842)]