19954270

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{193}}^1\times {\mathrm{211}}^1$

素因数の和:425

約数の個数: 48

約数和(自身を含む): 42197328

約数和(自身を除く): 22243058

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 193, 211, 245, 386, 422, 490, 965, 1055, 1351, 1477, 1930, 2110, 2702, 2954, 6755, 7385, 9457, 10339, 13510, 14770, 18914, 20678, 40723, 47285, 51695, 81446, 94570, 103390, 203615, 285061, 407230, 570122, 1425305, 1995427, 2850610, 3990854, 9977135, 19954270]

約数ペア:

[(1, 19954270), (2, 9977135), (5, 3990854), (7, 2850610), (10, 1995427), (14, 1425305), (35, 570122), (49, 407230), (70, 285061), (98, 203615), (193, 103390), (211, 94570), (245, 81446), (386, 51695), (422, 47285), (490, 40723), (965, 20678), (1055, 18914), (1351, 14770), (1477, 13510), (1930, 10339), (2110, 9457), (2702, 7385), (2954, 6755)]