218272040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{779543}}^1$

素因数の和:779561

約数の個数: 32

約数和(自身を含む): 561271680

約数和(自身を除く): 342999640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 779543, 1559086, 3118172, 3897715, 5456801, 6236344, 7795430, 10913602, 15590860, 21827204, 27284005, 31181720, 43654408, 54568010, 109136020, 218272040]

約数ペア:

[(1, 218272040), (2, 109136020), (4, 54568010), (5, 43654408), (7, 31181720), (8, 27284005), (10, 21827204), (14, 15590860), (20, 10913602), (28, 7795430), (35, 6236344), (40, 5456801), (56, 3897715), (70, 3118172), (140, 1559086), (280, 779543)]