2648240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{4729}}^1$

素因数の和:4749

約数の個数: 40

約数和(自身を含む): 7038240

約数和(自身を除く): 4390000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 4729, 9458, 18916, 23645, 33103, 37832, 47290, 66206, 75664, 94580, 132412, 165515, 189160, 264824, 331030, 378320, 529648, 662060, 1324120, 2648240]

約数ペア:

[(1, 2648240), (2, 1324120), (4, 662060), (5, 529648), (7, 378320), (8, 331030), (10, 264824), (14, 189160), (16, 165515), (20, 132412), (28, 94580), (35, 75664), (40, 66206), (56, 47290), (70, 37832), (80, 33103), (112, 23645), (140, 18916), (280, 9458), (560, 4729)]