661638205

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{631}}^1\times {\mathrm{4877}}^1$

素因数の和:5556

約数の個数: 16

約数和(自身を含む): 813884544

約数和(自身を除く): 152246339

約数列:

[1, 5, 43, 215, 631, 3155, 4877, 24385, 27133, 135665, 209711, 1048555, 3077387, 15386935, 132327641, 661638205]

約数ペア:

[(1, 661638205), (5, 132327641), (43, 15386935), (215, 3077387), (631, 1048555), (3155, 209711), (4877, 135665), (24385, 27133)]