80908240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{144479}}^1$

素因数の和:144499

約数の個数: 40

約数和(自身を含む): 214986240

約数和(自身を除く): 134078000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 144479, 288958, 577916, 722395, 1011353, 1155832, 1444790, 2022706, 2311664, 2889580, 4045412, 5056765, 5779160, 8090824, 10113530, 11558320, 16181648, 20227060, 40454120, 80908240]

約数ペア:

[(1, 80908240), (2, 40454120), (4, 20227060), (5, 16181648), (7, 11558320), (8, 10113530), (10, 8090824), (14, 5779160), (16, 5056765), (20, 4045412), (28, 2889580), (35, 2311664), (40, 2022706), (56, 1444790), (70, 1155832), (80, 1011353), (112, 722395), (140, 577916), (280, 288958), (560, 144479)]