213242540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1523161}}^1$

素因数の和:1523177

約数の個数: 24

約数和(自身を含む): 511782432

約数和(自身を除く): 298539892

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1523161, 3046322, 6092644, 7615805, 10662127, 15231610, 21324254, 30463220, 42648508, 53310635, 106621270, 213242540]

約数ペア:

[(1, 213242540), (2, 106621270), (4, 53310635), (5, 42648508), (7, 30463220), (10, 21324254), (14, 15231610), (20, 10662127), (28, 7615805), (35, 6092644), (70, 3046322), (140, 1523161)]