200905840

素因数分解:

$2^4\times 5^1\times {\mathrm{2511323}}^1$

素因数の和:2511336

約数の個数: 20

約数和(自身を含む): 467106264

約数和(自身を除く): 266200424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2511323, 5022646, 10045292, 12556615, 20090584, 25113230, 40181168, 50226460, 100452920, 200905840]

約数ペア:

[(1, 200905840), (2, 100452920), (4, 50226460), (5, 40181168), (8, 25113230), (10, 20090584), (16, 12556615), (20, 10045292), (40, 5022646), (80, 2511323)]