20549815

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{701}}^1$

素因数の和:771

約数の個数: 32

約数和(自身を含む): 29719872

約数和(自身を除く): 9170057

約数列:

[1, 5, 11, 13, 41, 55, 65, 143, 205, 451, 533, 701, 715, 2255, 2665, 3505, 5863, 7711, 9113, 28741, 29315, 38555, 45565, 100243, 143705, 316151, 373633, 501215, 1580755, 1868165, 4109963, 20549815]

約数ペア:

[(1, 20549815), (5, 4109963), (11, 1868165), (13, 1580755), (41, 501215), (55, 373633), (65, 316151), (143, 143705), (205, 100243), (451, 45565), (533, 38555), (701, 29315), (715, 28741), (2255, 9113), (2665, 7711), (3505, 5863)]