18508540

素因数分解:

$2^2\times 5^1\times {\mathrm{443}}^1\times {\mathrm{2089}}^1$

素因数の和:2541

約数の個数: 24

約数和(自身を含む): 38974320

約数和(自身を除く): 20465780

約数列:

[1, 2, 4, 5, 10, 20, 443, 886, 1772, 2089, 2215, 4178, 4430, 8356, 8860, 10445, 20890, 41780, 925427, 1850854, 3701708, 4627135, 9254270, 18508540]

約数ペア:

[(1, 18508540), (2, 9254270), (4, 4627135), (5, 3701708), (10, 1850854), (20, 925427), (443, 41780), (886, 20890), (1772, 10445), (2089, 8860), (2215, 8356), (4178, 4430)]