20143565

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{7207}}^1$

素因数の和:7268

約数の個数: 16

約数和(自身を含む): 26640768

約数和(自身を除く): 6497203

約数列:

[1, 5, 13, 43, 65, 215, 559, 2795, 7207, 36035, 93691, 309901, 468455, 1549505, 4028713, 20143565]

約数ペア:

[(1, 20143565), (5, 4028713), (13, 1549505), (43, 468455), (65, 309901), (215, 93691), (559, 36035), (2795, 7207)]