28784000

素因数分解:

$2^7\times 5^3\times 7^1\times {\mathrm{257}}^1$

素因数の和:293

約数の個数: 128

約数和(自身を含む): 82105920

約数和(自身を除く): 53321920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 64, 70, 80, 100, 112, 125, 128, 140, 160, 175, 200, 224, 250, 257, 280, 320, 350, 400, 448, 500, 514, 560, 640, 700, 800, 875, 896, 1000, 1028, 1120, 1285, 1400, 1600, 1750, 1799, 2000, 2056, 2240, 2570, 2800, 3200, 3500, 3598, 4000, 4112, 4480, 5140, 5600, 6425, 7000, 7196, 8000, 8224, 8995, 10280, 11200, 12850, 14000, 14392, 16000, 16448, 17990, 20560, 22400, 25700, 28000, 28784, 32125, 32896, 35980, 41120, 44975, 51400, 56000, 57568, 64250, 71960, 82240, 89950, 102800, 112000, 115136, 128500, 143920, 164480, 179900, 205600, 224875, 230272, 257000, 287840, 359800, 411200, 449750, 514000, 575680, 719600, 822400, 899500, 1028000, 1151360, 1439200, 1799000, 2056000, 2878400, 3598000, 4112000, 5756800, 7196000, 14392000, 28784000]

約数ペア:

[(1, 28784000), (2, 14392000), (4, 7196000), (5, 5756800), (7, 4112000), (8, 3598000), (10, 2878400), (14, 2056000), (16, 1799000), (20, 1439200), (25, 1151360), (28, 1028000), (32, 899500), (35, 822400), (40, 719600), (50, 575680), (56, 514000), (64, 449750), (70, 411200), (80, 359800), (100, 287840), (112, 257000), (125, 230272), (128, 224875), (140, 205600), (160, 179900), (175, 164480), (200, 143920), (224, 128500), (250, 115136), (257, 112000), (280, 102800), (320, 89950), (350, 82240), (400, 71960), (448, 64250), (500, 57568), (514, 56000), (560, 51400), (640, 44975), (700, 41120), (800, 35980), (875, 32896), (896, 32125), (1000, 28784), (1028, 28000), (1120, 25700), (1285, 22400), (1400, 20560), (1600, 17990), (1750, 16448), (1799, 16000), (2000, 14392), (2056, 14000), (2240, 12850), (2570, 11200), (2800, 10280), (3200, 8995), (3500, 8224), (3598, 8000), (4000, 7196), (4112, 7000), (4480, 6425), (5140, 5600)]