20800768

素因数分解:

$2^8\times {\mathrm{193}}^1\times {\mathrm{421}}^1$

素因数の和:630

約数の個数: 36

約数和(自身を含む): 41834548

約数和(自身を除く): 21033780

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 193, 256, 386, 421, 772, 842, 1544, 1684, 3088, 3368, 6176, 6736, 12352, 13472, 24704, 26944, 49408, 53888, 81253, 107776, 162506, 325012, 650024, 1300048, 2600096, 5200192, 10400384, 20800768]

約数ペア:

[(1, 20800768), (2, 10400384), (4, 5200192), (8, 2600096), (16, 1300048), (32, 650024), (64, 325012), (128, 162506), (193, 107776), (256, 81253), (386, 53888), (421, 49408), (772, 26944), (842, 24704), (1544, 13472), (1684, 12352), (3088, 6736), (3368, 6176)]