20620355

素因数分解:

$5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{4639}}^1$

素因数の和:4778

約数の個数: 16

約数和(自身を含む): 28508160

約数和(自身を除く): 7887805

約数列:

[1, 5, 7, 35, 127, 635, 889, 4445, 4639, 23195, 32473, 162365, 589153, 2945765, 4124071, 20620355]

約数ペア:

[(1, 20620355), (5, 4124071), (7, 2945765), (35, 589153), (127, 162365), (635, 32473), (889, 23195), (4445, 4639)]