72156040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{163991}}^1$

素因数の和:164013

約数の個数: 32

約数和(自身を含む): 177111360

約数和(自身を除く): 104955320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 163991, 327982, 655964, 819955, 1311928, 1639910, 1803901, 3279820, 3607802, 6559640, 7215604, 9019505, 14431208, 18039010, 36078020, 72156040]

約数ペア:

[(1, 72156040), (2, 36078020), (4, 18039010), (5, 14431208), (8, 9019505), (10, 7215604), (11, 6559640), (20, 3607802), (22, 3279820), (40, 1803901), (44, 1639910), (55, 1311928), (88, 819955), (110, 655964), (220, 327982), (440, 163991)]