900200

素因数分解:

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

素因数の和:666

約数の個数: 48

約数和(自身を含む): 2395680

約数和(自身を除く): 1495480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 140, 175, 200, 280, 350, 643, 700, 1286, 1400, 2572, 3215, 4501, 5144, 6430, 9002, 12860, 16075, 18004, 22505, 25720, 32150, 36008, 45010, 64300, 90020, 112525, 128600, 180040, 225050, 450100, 900200]

約数ペア:

[(1, 900200), (2, 450100), (4, 225050), (5, 180040), (7, 128600), (8, 112525), (10, 90020), (14, 64300), (20, 45010), (25, 36008), (28, 32150), (35, 25720), (40, 22505), (50, 18004), (56, 16075), (70, 12860), (100, 9002), (140, 6430), (175, 5144), (200, 4501), (280, 3215), (350, 2572), (643, 1400), (700, 1286)]