30782680

素因数分解:

$2^3\times 5^1\times {\mathrm{439}}^1\times {\mathrm{1753}}^1$

素因数の和:2203

約数の個数: 32

約数和(自身を含む): 69458400

約数和(自身を除く): 38675720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 439, 878, 1753, 1756, 2195, 3506, 3512, 4390, 7012, 8765, 8780, 14024, 17530, 17560, 35060, 70120, 769567, 1539134, 3078268, 3847835, 6156536, 7695670, 15391340, 30782680]

約数ペア:

[(1, 30782680), (2, 15391340), (4, 7695670), (5, 6156536), (8, 3847835), (10, 3078268), (20, 1539134), (40, 769567), (439, 70120), (878, 35060), (1753, 17560), (1756, 17530), (2195, 14024), (3506, 8780), (3512, 8765), (4390, 7012)]