20565558856

素因数分解:

$2^3\times {\mathrm{641551}}^1\times {\mathrm{4007}}^1$

素因数の和:645564

約数の個数: 16

約数和(自身を含む): 38570106240

約数和(自身を除く): 18004547384

約数列:

[1, 2, 4, 8, 4007, 8014, 16028, 32056, 641551, 1283102, 2566204, 5132408, 2570694857, 5141389714, 10282779428, 20565558856]

約数ペア:

[(1, 20565558856), (2, 10282779428), (4, 5141389714), (8, 2570694857), (4007, 5132408), (8014, 2566204), (16028, 1283102), (32056, 641551)]