20287290

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{39779}}^1$

素因数の和:39806

約数の個数: 32

約数和(自身を含む): 51554880

約数和(自身を除く): 31267590

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 85, 102, 170, 255, 510, 39779, 79558, 119337, 198895, 238674, 397790, 596685, 676243, 1193370, 1352486, 2028729, 3381215, 4057458, 6762430, 10143645, 20287290]

約数ペア:

[(1, 20287290), (2, 10143645), (3, 6762430), (5, 4057458), (6, 3381215), (10, 2028729), (15, 1352486), (17, 1193370), (30, 676243), (34, 596685), (51, 397790), (85, 238674), (102, 198895), (170, 119337), (255, 79558), (510, 39779)]