20629000

素因数分解:

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

素因数の和:456

約数の個数: 96

約数和(自身を含む): 56286360

約数和(自身を除く): 35657360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 49, 50, 56, 70, 98, 100, 125, 140, 175, 196, 200, 245, 250, 280, 350, 392, 421, 490, 500, 700, 842, 875, 980, 1000, 1225, 1400, 1684, 1750, 1960, 2105, 2450, 2947, 3368, 3500, 4210, 4900, 5894, 6125, 7000, 8420, 9800, 10525, 11788, 12250, 14735, 16840, 20629, 21050, 23576, 24500, 29470, 41258, 42100, 49000, 52625, 58940, 73675, 82516, 84200, 103145, 105250, 117880, 147350, 165032, 206290, 210500, 294700, 368375, 412580, 421000, 515725, 589400, 736750, 825160, 1031450, 1473500, 2062900, 2578625, 2947000, 4125800, 5157250, 10314500, 20629000]

約数ペア:

[(1, 20629000), (2, 10314500), (4, 5157250), (5, 4125800), (7, 2947000), (8, 2578625), (10, 2062900), (14, 1473500), (20, 1031450), (25, 825160), (28, 736750), (35, 589400), (40, 515725), (49, 421000), (50, 412580), (56, 368375), (70, 294700), (98, 210500), (100, 206290), (125, 165032), (140, 147350), (175, 117880), (196, 105250), (200, 103145), (245, 84200), (250, 82516), (280, 73675), (350, 58940), (392, 52625), (421, 49000), (490, 42100), (500, 41258), (700, 29470), (842, 24500), (875, 23576), (980, 21050), (1000, 20629), (1225, 16840), (1400, 14735), (1684, 12250), (1750, 11788), (1960, 10525), (2105, 9800), (2450, 8420), (2947, 7000), (3368, 6125), (3500, 5894), (4210, 4900)]