21440806480

素因数分解:

$2^4\times 5^1\times {\mathrm{268010081}}^1$

素因数の和:268010094

約数の個数: 20

約数和(自身を含む): 49849875252

約数和(自身を除く): 28409068772

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 268010081, 536020162, 1072040324, 1340050405, 2144080648, 2680100810, 4288161296, 5360201620, 10720403240, 21440806480]

約数ペア:

[(1, 21440806480), (2, 10720403240), (4, 5360201620), (5, 4288161296), (8, 2680100810), (10, 2144080648), (16, 1340050405), (20, 1072040324), (40, 536020162), (80, 268010081)]