161748620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{15643}}^1$

素因数の和:15710

約数の個数: 48

約数和(自身を含む): 378459648

約数和(自身を除く): 216711028

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 47, 55, 94, 110, 188, 220, 235, 470, 517, 940, 1034, 2068, 2585, 5170, 10340, 15643, 31286, 62572, 78215, 156430, 172073, 312860, 344146, 688292, 735221, 860365, 1470442, 1720730, 2940884, 3441460, 3676105, 7352210, 8087431, 14704420, 16174862, 32349724, 40437155, 80874310, 161748620]

約数ペア:

[(1, 161748620), (2, 80874310), (4, 40437155), (5, 32349724), (10, 16174862), (11, 14704420), (20, 8087431), (22, 7352210), (44, 3676105), (47, 3441460), (55, 2940884), (94, 1720730), (110, 1470442), (188, 860365), (220, 735221), (235, 688292), (470, 344146), (517, 312860), (940, 172073), (1034, 156430), (2068, 78215), (2585, 62572), (5170, 31286), (10340, 15643)]