2840180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{20287}}^1$

素因数の和:20303

約数の個数: 24

約数和(自身を含む): 6816768

約数和(自身を除く): 3976588

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 20287, 40574, 81148, 101435, 142009, 202870, 284018, 405740, 568036, 710045, 1420090, 2840180]

約数ペア:

[(1, 2840180), (2, 1420090), (4, 710045), (5, 568036), (7, 405740), (10, 284018), (14, 202870), (20, 142009), (28, 101435), (35, 81148), (70, 40574), (140, 20287)]