840727020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{2001731}}^1$

素因数の和:2001750

約数の個数: 48

約数和(自身を含む): 2690327808

約数和(自身を除く): 1849600788

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 2001731, 4003462, 6005193, 8006924, 10008655, 12010386, 14012117, 20017310, 24020772, 28024234, 30025965, 40034620, 42036351, 56048468, 60051930, 70060585, 84072702, 120103860, 140121170, 168145404, 210181755, 280242340, 420363510, 840727020]

約数ペア:

[(1, 840727020), (2, 420363510), (3, 280242340), (4, 210181755), (5, 168145404), (6, 140121170), (7, 120103860), (10, 84072702), (12, 70060585), (14, 60051930), (15, 56048468), (20, 42036351), (21, 40034620), (28, 30025965), (30, 28024234), (35, 24020772), (42, 20017310), (60, 14012117), (70, 12010386), (84, 10008655), (105, 8006924), (140, 6005193), (210, 4003462), (420, 2001731)]