179991280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{321413}}^1$

素因数の和:321433

約数の個数: 40

約数和(自身を含む): 478264032

約数和(自身を除く): 298272752

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 321413, 642826, 1285652, 1607065, 2249891, 2571304, 3214130, 4499782, 5142608, 6428260, 8999564, 11249455, 12856520, 17999128, 22498910, 25713040, 35998256, 44997820, 89995640, 179991280]

約数ペア:

[(1, 179991280), (2, 89995640), (4, 44997820), (5, 35998256), (7, 25713040), (8, 22498910), (10, 17999128), (14, 12856520), (16, 11249455), (20, 8999564), (28, 6428260), (35, 5142608), (40, 4499782), (56, 3214130), (70, 2571304), (80, 2249891), (112, 1607065), (140, 1285652), (280, 642826), (560, 321413)]