220310020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1573643}}^1$

素因数の和:1573659

約数の個数: 24

約数和(自身を含む): 528744384

約数和(自身を除く): 308434364

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1573643, 3147286, 6294572, 7868215, 11015501, 15736430, 22031002, 31472860, 44062004, 55077505, 110155010, 220310020]

約数ペア:

[(1, 220310020), (2, 110155010), (4, 55077505), (5, 44062004), (7, 31472860), (10, 22031002), (14, 15736430), (20, 11015501), (28, 7868215), (35, 6294572), (70, 3147286), (140, 1573643)]