256100840

素因数分解:

$2^3\times 5^1\times {\mathrm{937}}^1\times {\mathrm{6833}}^1$

素因数の和:7781

約数の個数: 32

約数和(自身を含む): 576926280

約数和(自身を除く): 320825440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 937, 1874, 3748, 4685, 6833, 7496, 9370, 13666, 18740, 27332, 34165, 37480, 54664, 68330, 136660, 273320, 6402521, 12805042, 25610084, 32012605, 51220168, 64025210, 128050420, 256100840]

約数ペア:

[(1, 256100840), (2, 128050420), (4, 64025210), (5, 51220168), (8, 32012605), (10, 25610084), (20, 12805042), (40, 6402521), (937, 273320), (1874, 136660), (3748, 68330), (4685, 54664), (6833, 37480), (7496, 34165), (9370, 27332), (13666, 18740)]