138955520

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:242

約数の個数: 144

約数和(自身を含む): 370863360

約数和(自身を除く): 231907840

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 71, 80, 88, 110, 128, 139, 142, 160, 176, 220, 256, 278, 284, 320, 352, 355, 440, 556, 568, 640, 695, 704, 710, 781, 880, 1112, 1136, 1280, 1390, 1408, 1420, 1529, 1562, 1760, 2224, 2272, 2780, 2816, 2840, 3058, 3124, 3520, 3905, 4448, 4544, 5560, 5680, 6116, 6248, 7040, 7645, 7810, 8896, 9088, 9869, 11120, 11360, 12232, 12496, 14080, 15290, 15620, 17792, 18176, 19738, 22240, 22720, 24464, 24992, 30580, 31240, 35584, 39476, 44480, 45440, 48928, 49345, 49984, 61160, 62480, 78952, 88960, 90880, 97856, 98690, 99968, 108559, 122320, 124960, 157904, 177920, 195712, 197380, 199936, 217118, 244640, 249920, 315808, 391424, 394760, 434236, 489280, 499840, 542795, 631616, 789520, 868472, 978560, 999680, 1085590, 1263232, 1579040, 1736944, 1957120, 2171180, 2526464, 3158080, 3473888, 4342360, 6316160, 6947776, 8684720, 12632320, 13895552, 17369440, 27791104, 34738880, 69477760, 138955520]

約数ペア:

[(1, 138955520), (2, 69477760), (4, 34738880), (5, 27791104), (8, 17369440), (10, 13895552), (11, 12632320), (16, 8684720), (20, 6947776), (22, 6316160), (32, 4342360), (40, 3473888), (44, 3158080), (55, 2526464), (64, 2171180), (71, 1957120), (80, 1736944), (88, 1579040), (110, 1263232), (128, 1085590), (139, 999680), (142, 978560), (160, 868472), (176, 789520), (220, 631616), (256, 542795), (278, 499840), (284, 489280), (320, 434236), (352, 394760), (355, 391424), (440, 315808), (556, 249920), (568, 244640), (640, 217118), (695, 199936), (704, 197380), (710, 195712), (781, 177920), (880, 157904), (1112, 124960), (1136, 122320), (1280, 108559), (1390, 99968), (1408, 98690), (1420, 97856), (1529, 90880), (1562, 88960), (1760, 78952), (2224, 62480), (2272, 61160), (2780, 49984), (2816, 49345), (2840, 48928), (3058, 45440), (3124, 44480), (3520, 39476), (3905, 35584), (4448, 31240), (4544, 30580), (5560, 24992), (5680, 24464), (6116, 22720), (6248, 22240), (7040, 19738), (7645, 18176), (7810, 17792), (8896, 15620), (9088, 15290), (9869, 14080), (11120, 12496), (11360, 12232)]