31171280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{55663}}^1$

素因数の和:55683

約数の個数: 40

約数和(自身を含む): 82828032

約数和(自身を除く): 51656752

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 55663, 111326, 222652, 278315, 389641, 445304, 556630, 779282, 890608, 1113260, 1558564, 1948205, 2226520, 3117128, 3896410, 4453040, 6234256, 7792820, 15585640, 31171280]

約数ペア:

[(1, 31171280), (2, 15585640), (4, 7792820), (5, 6234256), (7, 4453040), (8, 3896410), (10, 3117128), (14, 2226520), (16, 1948205), (20, 1558564), (28, 1113260), (35, 890608), (40, 779282), (56, 556630), (70, 445304), (80, 389641), (112, 278315), (140, 222652), (280, 111326), (560, 55663)]