19007420

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{8719}}^1$

素因数の和:8837

約数の個数: 24

約数和(自身を含む): 40286400

約数和(自身を除く): 21278980

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 8719, 17438, 34876, 43595, 87190, 174380, 950371, 1900742, 3801484, 4751855, 9503710, 19007420]

約数ペア:

[(1, 19007420), (2, 9503710), (4, 4751855), (5, 3801484), (10, 1900742), (20, 950371), (109, 174380), (218, 87190), (436, 43595), (545, 34876), (1090, 17438), (2180, 8719)]