28070020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127591}}^1$

素因数の和:127611

約数の個数: 24

約数和(自身を含む): 64306368

約数和(自身を除く): 36236348

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 127591, 255182, 510364, 637955, 1275910, 1403501, 2551820, 2807002, 5614004, 7017505, 14035010, 28070020]

約数ペア:

[(1, 28070020), (2, 14035010), (4, 7017505), (5, 5614004), (10, 2807002), (11, 2551820), (20, 1403501), (22, 1275910), (44, 637955), (55, 510364), (110, 255182), (220, 127591)]