2008100980

素因数分解:

$2^2\times 5^1\times {\mathrm{100405049}}^1$

素因数の和:100405058

約数の個数: 12

約数和(自身を含む): 4217012100

約数和(自身を除く): 2208911120

約数列:

[1, 2, 4, 5, 10, 20, 100405049, 200810098, 401620196, 502025245, 1004050490, 2008100980]

約数ペア:

[(1, 2008100980), (2, 1004050490), (4, 502025245), (5, 401620196), (10, 200810098), (20, 100405049)]