28012180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{200087}}^1$

素因数の和:200103

約数の個数: 24

約数和(自身を含む): 67229568

約数和(自身を除く): 39217388

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 200087, 400174, 800348, 1000435, 1400609, 2000870, 2801218, 4001740, 5602436, 7003045, 14006090, 28012180]

約数ペア:

[(1, 28012180), (2, 14006090), (4, 7003045), (5, 5602436), (7, 4001740), (10, 2801218), (14, 2000870), (20, 1400609), (28, 1000435), (35, 800348), (70, 400174), (140, 200087)]