84356540

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{2087}}^1$

素因数の和:2186

約数の個数: 48

約数和(自身を含む): 185213952

約数和(自身を除く): 100857412

約数列:

[1, 2, 4, 5, 10, 20, 43, 47, 86, 94, 172, 188, 215, 235, 430, 470, 860, 940, 2021, 2087, 4042, 4174, 8084, 8348, 10105, 10435, 20210, 20870, 40420, 41740, 89741, 98089, 179482, 196178, 358964, 392356, 448705, 490445, 897410, 980890, 1794820, 1961780, 4217827, 8435654, 16871308, 21089135, 42178270, 84356540]

約数ペア:

[(1, 84356540), (2, 42178270), (4, 21089135), (5, 16871308), (10, 8435654), (20, 4217827), (43, 1961780), (47, 1794820), (86, 980890), (94, 897410), (172, 490445), (188, 448705), (215, 392356), (235, 358964), (430, 196178), (470, 179482), (860, 98089), (940, 89741), (2021, 41740), (2087, 40420), (4042, 20870), (4174, 20210), (8084, 10435), (8348, 10105)]