28042900

素因数分解:

$2^2\times 5^2\times {\mathrm{193}}^1\times {\mathrm{1453}}^1$

素因数の和:1660

約数の個数: 36

約数和(自身を含む): 61210492

約数和(自身を除く): 33167592

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 193, 386, 772, 965, 1453, 1930, 2906, 3860, 4825, 5812, 7265, 9650, 14530, 19300, 29060, 36325, 72650, 145300, 280429, 560858, 1121716, 1402145, 2804290, 5608580, 7010725, 14021450, 28042900]

約数ペア:

[(1, 28042900), (2, 14021450), (4, 7010725), (5, 5608580), (10, 2804290), (20, 1402145), (25, 1121716), (50, 560858), (100, 280429), (193, 145300), (386, 72650), (772, 36325), (965, 29060), (1453, 19300), (1930, 14530), (2906, 9650), (3860, 7265), (4825, 5812)]