39991280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{71413}}^1$

素因数の和:71433

約数の個数: 40

約数和(自身を含む): 106264032

約数和(自身を除く): 66272752

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 71413, 142826, 285652, 357065, 499891, 571304, 714130, 999782, 1142608, 1428260, 1999564, 2499455, 2856520, 3999128, 4998910, 5713040, 7998256, 9997820, 19995640, 39991280]

約数ペア:

[(1, 39991280), (2, 19995640), (4, 9997820), (5, 7998256), (7, 5713040), (8, 4998910), (10, 3999128), (14, 2856520), (16, 2499455), (20, 1999564), (28, 1428260), (35, 1142608), (40, 999782), (56, 714130), (70, 571304), (80, 499891), (112, 357065), (140, 285652), (280, 142826), (560, 71413)]