85578890

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{208729}}^1$

素因数の和:208777

約数の個数: 16

約数和(自身を含む): 157799880

約数和(自身を除く): 72220990

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 208729, 417458, 1043645, 2087290, 8557889, 17115778, 42789445, 85578890]

約数ペア:

[(1, 85578890), (2, 42789445), (5, 17115778), (10, 8557889), (41, 2087290), (82, 1043645), (205, 417458), (410, 208729)]