20416251968

素因数分解:

$2^6\times 7^1\times {\mathrm{211}}^1\times {\mathrm{215981}}^1$

素因数の和:216211

約数の個数: 56

約数和(自身を含む): 46520794944

約数和(自身を除く): 26104542976

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 211, 224, 422, 448, 844, 1477, 1688, 2954, 3376, 5908, 6752, 11816, 13504, 23632, 47264, 94528, 215981, 431962, 863924, 1511867, 1727848, 3023734, 3455696, 6047468, 6911392, 12094936, 13822784, 24189872, 45571991, 48379744, 91143982, 96759488, 182287964, 319003937, 364575928, 638007874, 729151856, 1276015748, 1458303712, 2552031496, 2916607424, 5104062992, 10208125984, 20416251968]

約数ペア:

[(1, 20416251968), (2, 10208125984), (4, 5104062992), (7, 2916607424), (8, 2552031496), (14, 1458303712), (16, 1276015748), (28, 729151856), (32, 638007874), (56, 364575928), (64, 319003937), (112, 182287964), (211, 96759488), (224, 91143982), (422, 48379744), (448, 45571991), (844, 24189872), (1477, 13822784), (1688, 12094936), (2954, 6911392), (3376, 6047468), (5908, 3455696), (6752, 3023734), (11816, 1727848), (13504, 1511867), (23632, 863924), (47264, 431962), (94528, 215981)]