20486533840

素因数分解:

$2^4\times 5^1\times {\mathrm{256081673}}^1$

素因数の和:256081686

約数の個数: 20

約数和(自身を含む): 47631191364

約数和(自身を除く): 27144657524

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 256081673, 512163346, 1024326692, 1280408365, 2048653384, 2560816730, 4097306768, 5121633460, 10243266920, 20486533840]

約数ペア:

[(1, 20486533840), (2, 10243266920), (4, 5121633460), (5, 4097306768), (8, 2560816730), (10, 2048653384), (16, 1280408365), (20, 1024326692), (40, 512163346), (80, 256081673)]