181420

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{193}}^1$

素因数の和:249

約数の個数: 24

約数和(自身を含む): 391104

約数和(自身を除く): 209684

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 193, 235, 386, 470, 772, 940, 965, 1930, 3860, 9071, 18142, 36284, 45355, 90710, 181420]

約数ペア:

[(1, 181420), (2, 90710), (4, 45355), (5, 36284), (10, 18142), (20, 9071), (47, 3860), (94, 1930), (188, 965), (193, 940), (235, 772), (386, 470)]