81649778

素因数分解:

$2^1\times 7^3\times {\mathrm{41}}^1\times {\mathrm{2903}}^1$

素因数の和:2967

約数の個数: 32

約数和(自身を含む): 146361600

約数和(自身を除く): 64711822

約数列:

[1, 2, 7, 14, 41, 49, 82, 98, 287, 343, 574, 686, 2009, 2903, 4018, 5806, 14063, 20321, 28126, 40642, 119023, 142247, 238046, 284494, 833161, 995729, 1666322, 1991458, 5832127, 11664254, 40824889, 81649778]

約数ペア:

[(1, 81649778), (2, 40824889), (7, 11664254), (14, 5832127), (41, 1991458), (49, 1666322), (82, 995729), (98, 833161), (287, 284494), (343, 238046), (574, 142247), (686, 119023), (2009, 40642), (2903, 28126), (4018, 20321), (5806, 14063)]