642677980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{4590557}}^1$

素因数の和:4590573

約数の個数: 24

約数和(自身を含む): 1542427488

約数和(自身を除く): 899749508

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 4590557, 9181114, 18362228, 22952785, 32133899, 45905570, 64267798, 91811140, 128535596, 160669495, 321338990, 642677980]

約数ペア:

[(1, 642677980), (2, 321338990), (4, 160669495), (5, 128535596), (7, 91811140), (10, 64267798), (14, 45905570), (20, 32133899), (28, 22952785), (35, 18362228), (70, 9181114), (140, 4590557)]