40605640

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{5153}}^1$

素因数の和:5361

約数の個数: 32

約数和(自身を含む): 91844280

約数和(自身を除く): 51238640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 3940, 5153, 7880, 10306, 20612, 25765, 41224, 51530, 103060, 206120, 1015141, 2030282, 4060564, 5075705, 8121128, 10151410, 20302820, 40605640]

約数ペア:

[(1, 40605640), (2, 20302820), (4, 10151410), (5, 8121128), (8, 5075705), (10, 4060564), (20, 2030282), (40, 1015141), (197, 206120), (394, 103060), (788, 51530), (985, 41224), (1576, 25765), (1970, 20612), (3940, 10306), (5153, 7880)]