4501000

素因数分解:

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

素因数の和:671

約数の個数: 64

約数和(自身を含む): 12055680

約数和(自身を除く): 7554680

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, 500, 643, 700, 875, 1000, 1286, 1400, 1750, 2572, 3215, 3500, 4501, 5144, 6430, 7000, 9002, 12860, 16075, 18004, 22505, 25720, 32150, 36008, 45010, 64300, 80375, 90020, 112525, 128600, 160750, 180040, 225050, 321500, 450100, 562625, 643000, 900200, 1125250, 2250500, 4501000]

約数ペア:

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