19880768

素因数分解:

$2^6\times {\mathrm{113}}^1\times {\mathrm{2749}}^1$

素因数の和:2874

約数の個数: 28

約数和(自身を含む): 39814500

約数和(自身を除く): 19933732

約数列:

[1, 2, 4, 8, 16, 32, 64, 113, 226, 452, 904, 1808, 2749, 3616, 5498, 7232, 10996, 21992, 43984, 87968, 175936, 310637, 621274, 1242548, 2485096, 4970192, 9940384, 19880768]

約数ペア:

[(1, 19880768), (2, 9940384), (4, 4970192), (8, 2485096), (16, 1242548), (32, 621274), (64, 310637), (113, 175936), (226, 87968), (452, 43984), (904, 21992), (1808, 10996), (2749, 7232), (3616, 5498)]