988941020

素因数分解:

$2^2\times 5^1\times {\mathrm{4391}}^1\times {\mathrm{11261}}^1$

素因数の和:15661

約数の個数: 24

約数和(自身を含む): 2077433568

約数和(自身を除く): 1088492548

約数列:

[1, 2, 4, 5, 10, 20, 4391, 8782, 11261, 17564, 21955, 22522, 43910, 45044, 56305, 87820, 112610, 225220, 49447051, 98894102, 197788204, 247235255, 494470510, 988941020]

約数ペア:

[(1, 988941020), (2, 494470510), (4, 247235255), (5, 197788204), (10, 98894102), (20, 49447051), (4391, 225220), (8782, 112610), (11261, 87820), (17564, 56305), (21955, 45044), (22522, 43910)]