81879812

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{47939}}^1$

素因数の和:48011

約数の個数: 24

約数和(自身を含む): 166447680

約数和(自身を除く): 84567868

約数列:

[1, 2, 4, 7, 14, 28, 61, 122, 244, 427, 854, 1708, 47939, 95878, 191756, 335573, 671146, 1342292, 2924279, 5848558, 11697116, 20469953, 40939906, 81879812]

約数ペア:

[(1, 81879812), (2, 40939906), (4, 20469953), (7, 11697116), (14, 5848558), (28, 2924279), (61, 1342292), (122, 671146), (244, 335573), (427, 191756), (854, 95878), (1708, 47939)]