20656150

素因数分解:

$2^1\times 5^2\times {\mathrm{97}}^1\times {\mathrm{4259}}^1$

素因数の和:4368

約数の個数: 24

約数和(自身を含む): 38825640

約数和(自身を除く): 18169490

約数列:

[1, 2, 5, 10, 25, 50, 97, 194, 485, 970, 2425, 4259, 4850, 8518, 21295, 42590, 106475, 212950, 413123, 826246, 2065615, 4131230, 10328075, 20656150]

約数ペア:

[(1, 20656150), (2, 10328075), (5, 4131230), (10, 2065615), (25, 826246), (50, 413123), (97, 212950), (194, 106475), (485, 42590), (970, 21295), (2425, 8518), (4259, 4850)]