728045140

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{375281}}^1$

素因数の和:375387

約数の個数: 24

約数和(自身を含む): 1544660712

約数和(自身を除く): 816615572

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 375281, 750562, 1501124, 1876405, 3752810, 7505620, 36402257, 72804514, 145609028, 182011285, 364022570, 728045140]

約数ペア:

[(1, 728045140), (2, 364022570), (4, 182011285), (5, 145609028), (10, 72804514), (20, 36402257), (97, 7505620), (194, 3752810), (388, 1876405), (485, 1501124), (970, 750562), (1940, 375281)]