20123282907

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{4993}}^1$

素因数の和:5082

約数の個数: 144

約数和(自身を含む): 39373894560

約数和(自身を除く): 19250611653

約数列:

[1, 3, 7, 9, 13, 19, 21, 37, 39, 49, 57, 63, 91, 111, 117, 133, 147, 171, 247, 259, 273, 333, 399, 441, 481, 637, 703, 741, 777, 819, 931, 1197, 1443, 1729, 1813, 1911, 2109, 2223, 2331, 2793, 3367, 4329, 4921, 4993, 5187, 5439, 5733, 6327, 8379, 9139, 10101, 12103, 14763, 14979, 15561, 16317, 23569, 27417, 30303, 34447, 34951, 36309, 44289, 44937, 63973, 64909, 70707, 82251, 94867, 103341, 104853, 108927, 184741, 191919, 194727, 212121, 244657, 284601, 310023, 314559, 447811, 454363, 554223, 575757, 584181, 664069, 733971, 853803, 1233271, 1293187, 1343433, 1363089, 1662669, 1992207, 2201913, 2401633, 3180541, 3510079, 3699813, 3879561, 4030299, 4089267, 4648483, 5976621, 7204899, 8632897, 9052309, 9541623, 10530237, 11099439, 11638683, 13945449, 16811431, 21614697, 24570553, 25898691, 27156927, 28624869, 31590711, 41836347, 45631027, 50434293, 60430279, 73711659, 77696073, 81470781, 117680017, 136893081, 151302879, 171993871, 181290837, 221134977, 319417189, 353040051, 410679243, 515981613, 543872511, 958251567, 1059120153, 1547944839, 2235920323, 2874754701, 6707760969, 20123282907]

約数ペア:

[(1, 20123282907), (3, 6707760969), (7, 2874754701), (9, 2235920323), (13, 1547944839), (19, 1059120153), (21, 958251567), (37, 543872511), (39, 515981613), (49, 410679243), (57, 353040051), (63, 319417189), (91, 221134977), (111, 181290837), (117, 171993871), (133, 151302879), (147, 136893081), (171, 117680017), (247, 81470781), (259, 77696073), (273, 73711659), (333, 60430279), (399, 50434293), (441, 45631027), (481, 41836347), (637, 31590711), (703, 28624869), (741, 27156927), (777, 25898691), (819, 24570553), (931, 21614697), (1197, 16811431), (1443, 13945449), (1729, 11638683), (1813, 11099439), (1911, 10530237), (2109, 9541623), (2223, 9052309), (2331, 8632897), (2793, 7204899), (3367, 5976621), (4329, 4648483), (4921, 4089267), (4993, 4030299), (5187, 3879561), (5439, 3699813), (5733, 3510079), (6327, 3180541), (8379, 2401633), (9139, 2201913), (10101, 1992207), (12103, 1662669), (14763, 1363089), (14979, 1343433), (15561, 1293187), (16317, 1233271), (23569, 853803), (27417, 733971), (30303, 664069), (34447, 584181), (34951, 575757), (36309, 554223), (44289, 454363), (44937, 447811), (63973, 314559), (64909, 310023), (70707, 284601), (82251, 244657), (94867, 212121), (103341, 194727), (104853, 191919), (108927, 184741)]