90972880

素因数分解:

$2^4\times 5^1\times {\mathrm{1137161}}^1$

素因数の和:1137174

約数の個数: 20

約数和(自身を含む): 211512132

約数和(自身を除く): 120539252

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1137161, 2274322, 4548644, 5685805, 9097288, 11371610, 18194576, 22743220, 45486440, 90972880]

約数ペア:

[(1, 90972880), (2, 45486440), (4, 22743220), (5, 18194576), (8, 11371610), (10, 9097288), (16, 5685805), (20, 4548644), (40, 2274322), (80, 1137161)]