1260980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{9007}}^1$

素因数の和:9023

約数の個数: 24

約数和(自身を含む): 3026688

約数和(自身を除く): 1765708

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 9007, 18014, 36028, 45035, 63049, 90070, 126098, 180140, 252196, 315245, 630490, 1260980]

約数ペア:

[(1, 1260980), (2, 630490), (4, 315245), (5, 252196), (7, 180140), (10, 126098), (14, 90070), (20, 63049), (28, 45035), (35, 36028), (70, 18014), (140, 9007)]