20786620016

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{18298081}}^1$

素因数の和:18298160

約数の個数: 20

約数和(自身を含む): 40841319024

約数和(自身を除く): 20054699008

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 18298081, 36596162, 73192324, 146384648, 292769296, 1299163751, 2598327502, 5196655004, 10393310008, 20786620016]

約数ペア:

[(1, 20786620016), (2, 10393310008), (4, 5196655004), (8, 2598327502), (16, 1299163751), (71, 292769296), (142, 146384648), (284, 73192324), (568, 36596162), (1136, 18298081)]