19868860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{90313}}^1$

素因数の和:90333

約数の個数: 24

約数和(自身を含む): 45518256

約数和(自身を除く): 25649396

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 90313, 180626, 361252, 451565, 903130, 993443, 1806260, 1986886, 3973772, 4967215, 9934430, 19868860]

約数ペア:

[(1, 19868860), (2, 9934430), (4, 4967215), (5, 3973772), (10, 1986886), (11, 1806260), (20, 993443), (22, 903130), (44, 451565), (55, 361252), (110, 180626), (220, 90313)]