2018201720

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{385153}}^1$

素因数の和:385295

約数の個数: 32

約数和(自身を含む): 4575629520

約数和(自身を除く): 2557427800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 385153, 770306, 1540612, 1925765, 3081224, 3851530, 7703060, 15406120, 50455043, 100910086, 201820172, 252275215, 403640344, 504550430, 1009100860, 2018201720]

約数ペア:

[(1, 2018201720), (2, 1009100860), (4, 504550430), (5, 403640344), (8, 252275215), (10, 201820172), (20, 100910086), (40, 50455043), (131, 15406120), (262, 7703060), (524, 3851530), (655, 3081224), (1048, 1925765), (1310, 1540612), (2620, 770306), (5240, 385153)]