2840802020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{20291443}}^1$

素因数の和:20291459

約数の個数: 24

約数和(自身を含む): 6817925184

約数和(自身を除く): 3977123164

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 20291443, 40582886, 81165772, 101457215, 142040101, 202914430, 284080202, 405828860, 568160404, 710200505, 1420401010, 2840802020]

約数ペア:

[(1, 2840802020), (2, 1420401010), (4, 710200505), (5, 568160404), (7, 405828860), (10, 284080202), (14, 202914430), (20, 142040101), (28, 101457215), (35, 81165772), (70, 40582886), (140, 20291443)]