198931540

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{91253}}^1$

素因数の和:91371

約数の個数: 24

約数和(自身を含む): 421593480

約数和(自身を除く): 222661940

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 91253, 182506, 365012, 456265, 912530, 1825060, 9946577, 19893154, 39786308, 49732885, 99465770, 198931540]

約数ペア:

[(1, 198931540), (2, 99465770), (4, 49732885), (5, 39786308), (10, 19893154), (20, 9946577), (109, 1825060), (218, 912530), (436, 456265), (545, 365012), (1090, 182506), (2180, 91253)]