1680980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{12007}}^1$

素因数の和:12023

約数の個数: 24

約数和(自身を含む): 4034688

約数和(自身を除く): 2353708

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 12007, 24014, 48028, 60035, 84049, 120070, 168098, 240140, 336196, 420245, 840490, 1680980]

約数ペア:

[(1, 1680980), (2, 840490), (4, 420245), (5, 336196), (7, 240140), (10, 168098), (14, 120070), (20, 84049), (28, 60035), (35, 48028), (70, 24014), (140, 12007)]