21602320

素因数分解:

$2^4\times 5^1\times {\mathrm{270029}}^1$

素因数の和:270042

約数の個数: 20

約数和(自身を含む): 50225580

約数和(自身を除く): 28623260

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 270029, 540058, 1080116, 1350145, 2160232, 2700290, 4320464, 5400580, 10801160, 21602320]

約数ペア:

[(1, 21602320), (2, 10801160), (4, 5400580), (5, 4320464), (8, 2700290), (10, 2160232), (16, 1350145), (20, 1080116), (40, 540058), (80, 270029)]