4380040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{15643}}^1$

素因数の和:15661

約数の個数: 32

約数和(自身を含む): 11263680

約数和(自身を除く): 6883640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 15643, 31286, 62572, 78215, 109501, 125144, 156430, 219002, 312860, 438004, 547505, 625720, 876008, 1095010, 2190020, 4380040]

約数ペア:

[(1, 4380040), (2, 2190020), (4, 1095010), (5, 876008), (7, 625720), (8, 547505), (10, 438004), (14, 312860), (20, 219002), (28, 156430), (35, 125144), (40, 109501), (56, 78215), (70, 62572), (140, 31286), (280, 15643)]