78155560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{279127}}^1$

素因数の和:279145

約数の個数: 32

約数和(自身を含む): 200972160

約数和(自身を除く): 122816600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 279127, 558254, 1116508, 1395635, 1953889, 2233016, 2791270, 3907778, 5582540, 7815556, 9769445, 11165080, 15631112, 19538890, 39077780, 78155560]

約数ペア:

[(1, 78155560), (2, 39077780), (4, 19538890), (5, 15631112), (7, 11165080), (8, 9769445), (10, 7815556), (14, 5582540), (20, 3907778), (28, 2791270), (35, 2233016), (40, 1953889), (56, 1395635), (70, 1116508), (140, 558254), (280, 279127)]