289310980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2066507}}^1$

素因数の和:2066523

約数の個数: 24

約数和(自身を含む): 694346688

約数和(自身を除く): 405035708

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2066507, 4133014, 8266028, 10332535, 14465549, 20665070, 28931098, 41330140, 57862196, 72327745, 144655490, 289310980]

約数ペア:

[(1, 289310980), (2, 144655490), (4, 72327745), (5, 57862196), (7, 41330140), (10, 28931098), (14, 20665070), (20, 14465549), (28, 10332535), (35, 8266028), (70, 4133014), (140, 2066507)]