864380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{3929}}^1$

素因数の和:3949

約数の個数: 24

約数和(自身を含む): 1980720

約数和(自身を除く): 1116340

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 3929, 7858, 15716, 19645, 39290, 43219, 78580, 86438, 172876, 216095, 432190, 864380]

約数ペア:

[(1, 864380), (2, 432190), (4, 216095), (5, 172876), (10, 86438), (11, 78580), (20, 43219), (22, 39290), (44, 19645), (55, 15716), (110, 7858), (220, 3929)]