20702934928

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{668009}}^1$

素因数の和:668179

約数の個数: 40

約数和(自身を含む): 43487451000

約数和(自身を除く): 22784516072

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 149, 208, 298, 596, 1192, 1937, 2384, 3874, 7748, 15496, 30992, 668009, 1336018, 2672036, 5344072, 8684117, 10688144, 17368234, 34736468, 69472936, 99533341, 138945872, 199066682, 398133364, 796266728, 1293933433, 1592533456, 2587866866, 5175733732, 10351467464, 20702934928]

約数ペア:

[(1, 20702934928), (2, 10351467464), (4, 5175733732), (8, 2587866866), (13, 1592533456), (16, 1293933433), (26, 796266728), (52, 398133364), (104, 199066682), (149, 138945872), (208, 99533341), (298, 69472936), (596, 34736468), (1192, 17368234), (1937, 10688144), (2384, 8684117), (3874, 5344072), (7748, 2672036), (15496, 1336018), (30992, 668009)]