20008577872

素因数分解:

$2^4\times {\mathrm{4931}}^1\times {\mathrm{253607}}^1$

素因数の和:258546

約数の個数: 20

約数和(自身を含む): 38774634336

約数和(自身を除く): 18766056464

約数列:

[1, 2, 4, 8, 16, 4931, 9862, 19724, 39448, 78896, 253607, 507214, 1014428, 2028856, 4057712, 1250536117, 2501072234, 5002144468, 10004288936, 20008577872]

約数ペア:

[(1, 20008577872), (2, 10004288936), (4, 5002144468), (8, 2501072234), (16, 1250536117), (4931, 4057712), (9862, 2028856), (19724, 1014428), (39448, 507214), (78896, 253607)]