40804040

素因数分解:

$2^3\times 5^1\times {\mathrm{1020101}}^1$

素因数の和:1020112

約数の個数: 16

約数和(自身を含む): 91809180

約数和(自身を除く): 51005140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1020101, 2040202, 4080404, 5100505, 8160808, 10201010, 20402020, 40804040]

約数ペア:

[(1, 40804040), (2, 20402020), (4, 10201010), (5, 8160808), (8, 5100505), (10, 4080404), (20, 2040202), (40, 1020101)]