20012795

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{1741}}^1$

素因数の和:1787

約数の個数: 24

約数和(自身を含む): 27802320

約数和(自身を除く): 7789525

約数列:

[1, 5, 11, 19, 55, 95, 121, 209, 605, 1045, 1741, 2299, 8705, 11495, 19151, 33079, 95755, 165395, 210661, 363869, 1053305, 1819345, 4002559, 20012795]

約数ペア:

[(1, 20012795), (5, 4002559), (11, 1819345), (19, 1053305), (55, 363869), (95, 210661), (121, 165395), (209, 95755), (605, 33079), (1045, 19151), (1741, 11495), (2299, 8705)]