20153890

素因数分解:

$2^1\times 5^1\times {\mathrm{661}}^1\times {\mathrm{3049}}^1$

素因数の和:3717

約数の個数: 16

約数和(自身を含む): 36343800

約数和(自身を除く): 16189910

約数列:

[1, 2, 5, 10, 661, 1322, 3049, 3305, 6098, 6610, 15245, 30490, 2015389, 4030778, 10076945, 20153890]

約数ペア:

[(1, 20153890), (2, 10076945), (5, 4030778), (10, 2015389), (661, 30490), (1322, 15245), (3049, 6610), (3305, 6098)]