18869860

素因数分解:

$2^2\times 5^1\times {\mathrm{347}}^1\times {\mathrm{2719}}^1$

素因数の和:3075

約数の個数: 24

約数和(自身を含む): 39755520

約数和(自身を除く): 20885660

約数列:

[1, 2, 4, 5, 10, 20, 347, 694, 1388, 1735, 2719, 3470, 5438, 6940, 10876, 13595, 27190, 54380, 943493, 1886986, 3773972, 4717465, 9434930, 18869860]

約数ペア:

[(1, 18869860), (2, 9434930), (4, 4717465), (5, 3773972), (10, 1886986), (20, 943493), (347, 54380), (694, 27190), (1388, 13595), (1735, 10876), (2719, 6940), (3470, 5438)]