2947000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{421}}^1$

素因数の和:449

約数の個数: 64

約数和(自身を含む): 7899840

約数和(自身を除く): 4952840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 125, 140, 175, 200, 250, 280, 350, 421, 500, 700, 842, 875, 1000, 1400, 1684, 1750, 2105, 2947, 3368, 3500, 4210, 5894, 7000, 8420, 10525, 11788, 14735, 16840, 21050, 23576, 29470, 42100, 52625, 58940, 73675, 84200, 105250, 117880, 147350, 210500, 294700, 368375, 421000, 589400, 736750, 1473500, 2947000]

約数ペア:

[(1, 2947000), (2, 1473500), (4, 736750), (5, 589400), (7, 421000), (8, 368375), (10, 294700), (14, 210500), (20, 147350), (25, 117880), (28, 105250), (35, 84200), (40, 73675), (50, 58940), (56, 52625), (70, 42100), (100, 29470), (125, 23576), (140, 21050), (175, 16840), (200, 14735), (250, 11788), (280, 10525), (350, 8420), (421, 7000), (500, 5894), (700, 4210), (842, 3500), (875, 3368), (1000, 2947), (1400, 2105), (1684, 1750)]