79991180

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{1979}}^1$

素因数の和:2078

約数の個数: 48

約数和(自身を含む): 175633920

約数和(自身を除く): 95642740

約数列:

[1, 2, 4, 5, 10, 20, 43, 47, 86, 94, 172, 188, 215, 235, 430, 470, 860, 940, 1979, 2021, 3958, 4042, 7916, 8084, 9895, 10105, 19790, 20210, 39580, 40420, 85097, 93013, 170194, 186026, 340388, 372052, 425485, 465065, 850970, 930130, 1701940, 1860260, 3999559, 7999118, 15998236, 19997795, 39995590, 79991180]

約数ペア:

[(1, 79991180), (2, 39995590), (4, 19997795), (5, 15998236), (10, 7999118), (20, 3999559), (43, 1860260), (47, 1701940), (86, 930130), (94, 850970), (172, 465065), (188, 425485), (215, 372052), (235, 340388), (430, 186026), (470, 170194), (860, 93013), (940, 85097), (1979, 40420), (2021, 39580), (3958, 20210), (4042, 19790), (7916, 10105), (8084, 9895)]