20620040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{73643}}^1$

素因数の和:73661

約数の個数: 32

約数和(自身を含む): 53023680

約数和(自身を除く): 32403640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 73643, 147286, 294572, 368215, 515501, 589144, 736430, 1031002, 1472860, 2062004, 2577505, 2945720, 4124008, 5155010, 10310020, 20620040]

約数ペア:

[(1, 20620040), (2, 10310020), (4, 5155010), (5, 4124008), (7, 2945720), (8, 2577505), (10, 2062004), (14, 1472860), (20, 1031002), (28, 736430), (35, 589144), (40, 515501), (56, 368215), (70, 294572), (140, 147286), (280, 73643)]