66867220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{477623}}^1$

素因数の和:477639

約数の個数: 24

約数和(自身を含む): 160481664

約数和(自身を除く): 93614444

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 477623, 955246, 1910492, 2388115, 3343361, 4776230, 6686722, 9552460, 13373444, 16716805, 33433610, 66867220]

約数ペア:

[(1, 66867220), (2, 33433610), (4, 16716805), (5, 13373444), (7, 9552460), (10, 6686722), (14, 4776230), (20, 3343361), (28, 2388115), (35, 1910492), (70, 955246), (140, 477623)]