20128071424

素因数分解:

$2^8\times {\mathrm{61}}^1\times {\mathrm{1288939}}^1$

素因数の和:1289016

約数の個数: 36

約数和(自身を含む): 40836197080

約数和(自身を除く): 20708125656

約数列:

[1, 2, 4, 8, 16, 32, 61, 64, 122, 128, 244, 256, 488, 976, 1952, 3904, 7808, 15616, 1288939, 2577878, 5155756, 10311512, 20623024, 41246048, 78625279, 82492096, 157250558, 164984192, 314501116, 329968384, 629002232, 1258004464, 2516008928, 5032017856, 10064035712, 20128071424]

約数ペア:

[(1, 20128071424), (2, 10064035712), (4, 5032017856), (8, 2516008928), (16, 1258004464), (32, 629002232), (61, 329968384), (64, 314501116), (122, 164984192), (128, 157250558), (244, 82492096), (256, 78625279), (488, 41246048), (976, 20623024), (1952, 10311512), (3904, 5155756), (7808, 2577878), (15616, 1288939)]