20738600

素因数分解:

$2^3\times 5^2\times {\mathrm{97}}^1\times {\mathrm{1069}}^1$

素因数の和:1182

約数の個数: 48

約数和(自身を含む): 48759900

約数和(自身を除く): 28021300

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 97, 100, 194, 200, 388, 485, 776, 970, 1069, 1940, 2138, 2425, 3880, 4276, 4850, 5345, 8552, 9700, 10690, 19400, 21380, 26725, 42760, 53450, 103693, 106900, 207386, 213800, 414772, 518465, 829544, 1036930, 2073860, 2592325, 4147720, 5184650, 10369300, 20738600]

約数ペア:

[(1, 20738600), (2, 10369300), (4, 5184650), (5, 4147720), (8, 2592325), (10, 2073860), (20, 1036930), (25, 829544), (40, 518465), (50, 414772), (97, 213800), (100, 207386), (194, 106900), (200, 103693), (388, 53450), (485, 42760), (776, 26725), (970, 21380), (1069, 19400), (1940, 10690), (2138, 9700), (2425, 8552), (3880, 5345), (4276, 4850)]