9002000

素因数分解:

$2^4\times 5^3\times 7^1\times {\mathrm{643}}^1$

素因数の和:673

約数の個数: 80

約数和(自身を含む): 24915072

約数和(自身を除く): 15913072

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 80, 100, 112, 125, 140, 175, 200, 250, 280, 350, 400, 500, 560, 643, 700, 875, 1000, 1286, 1400, 1750, 2000, 2572, 2800, 3215, 3500, 4501, 5144, 6430, 7000, 9002, 10288, 12860, 14000, 16075, 18004, 22505, 25720, 32150, 36008, 45010, 51440, 64300, 72016, 80375, 90020, 112525, 128600, 160750, 180040, 225050, 257200, 321500, 360080, 450100, 562625, 643000, 900200, 1125250, 1286000, 1800400, 2250500, 4501000, 9002000]

約数ペア:

[(1, 9002000), (2, 4501000), (4, 2250500), (5, 1800400), (7, 1286000), (8, 1125250), (10, 900200), (14, 643000), (16, 562625), (20, 450100), (25, 360080), (28, 321500), (35, 257200), (40, 225050), (50, 180040), (56, 160750), (70, 128600), (80, 112525), (100, 90020), (112, 80375), (125, 72016), (140, 64300), (175, 51440), (200, 45010), (250, 36008), (280, 32150), (350, 25720), (400, 22505), (500, 18004), (560, 16075), (643, 14000), (700, 12860), (875, 10288), (1000, 9002), (1286, 7000), (1400, 6430), (1750, 5144), (2000, 4501), (2572, 3500), (2800, 3215)]