19999584

素因数分解:

$2^5\times 3^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{107}}^1$

素因数の和:193

約数の個数: 144

約数和(自身を含む): 63685440

約数和(自身を除く): 43685856

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 32, 33, 36, 44, 48, 59, 66, 72, 88, 96, 99, 107, 118, 132, 144, 176, 177, 198, 214, 236, 264, 288, 321, 352, 354, 396, 428, 472, 528, 531, 642, 649, 708, 792, 856, 944, 963, 1056, 1062, 1177, 1284, 1298, 1416, 1584, 1712, 1888, 1926, 1947, 2124, 2354, 2568, 2596, 2832, 3168, 3424, 3531, 3852, 3894, 4248, 4708, 5136, 5192, 5664, 5841, 6313, 7062, 7704, 7788, 8496, 9416, 10272, 10384, 10593, 11682, 12626, 14124, 15408, 15576, 16992, 18832, 18939, 20768, 21186, 23364, 25252, 28248, 30816, 31152, 37664, 37878, 42372, 46728, 50504, 56496, 56817, 62304, 69443, 75756, 84744, 93456, 101008, 112992, 113634, 138886, 151512, 169488, 186912, 202016, 208329, 227268, 277772, 303024, 338976, 416658, 454536, 555544, 606048, 624987, 833316, 909072, 1111088, 1249974, 1666632, 1818144, 2222176, 2499948, 3333264, 4999896, 6666528, 9999792, 19999584]

約数ペア:

[(1, 19999584), (2, 9999792), (3, 6666528), (4, 4999896), (6, 3333264), (8, 2499948), (9, 2222176), (11, 1818144), (12, 1666632), (16, 1249974), (18, 1111088), (22, 909072), (24, 833316), (32, 624987), (33, 606048), (36, 555544), (44, 454536), (48, 416658), (59, 338976), (66, 303024), (72, 277772), (88, 227268), (96, 208329), (99, 202016), (107, 186912), (118, 169488), (132, 151512), (144, 138886), (176, 113634), (177, 112992), (198, 101008), (214, 93456), (236, 84744), (264, 75756), (288, 69443), (321, 62304), (352, 56817), (354, 56496), (396, 50504), (428, 46728), (472, 42372), (528, 37878), (531, 37664), (642, 31152), (649, 30816), (708, 28248), (792, 25252), (856, 23364), (944, 21186), (963, 20768), (1056, 18939), (1062, 18832), (1177, 16992), (1284, 15576), (1298, 15408), (1416, 14124), (1584, 12626), (1712, 11682), (1888, 10593), (1926, 10384), (1947, 10272), (2124, 9416), (2354, 8496), (2568, 7788), (2596, 7704), (2832, 7062), (3168, 6313), (3424, 5841), (3531, 5664), (3852, 5192), (3894, 5136), (4248, 4708)]