531508720

素因数分解:

$2^4\times 5^1\times {\mathrm{6643859}}^1$

素因数の和:6643872

約数の個数: 20

約数和(自身を含む): 1235757960

約数和(自身を除く): 704249240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 6643859, 13287718, 26575436, 33219295, 53150872, 66438590, 106301744, 132877180, 265754360, 531508720]

約数ペア:

[(1, 531508720), (2, 265754360), (4, 132877180), (5, 106301744), (8, 66438590), (10, 53150872), (16, 33219295), (20, 26575436), (40, 13287718), (80, 6643859)]