1257676820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2028511}}^1$

素因数の和:2028551

約数の個数: 24

約数和(自身を含む): 2726320128

約数和(自身を除く): 1468643308

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 2028511, 4057022, 8114044, 10142555, 20285110, 40570220, 62883841, 125767682, 251535364, 314419205, 628838410, 1257676820]

約数ペア:

[(1, 1257676820), (2, 628838410), (4, 314419205), (5, 251535364), (10, 125767682), (20, 62883841), (31, 40570220), (62, 20285110), (124, 10142555), (155, 8114044), (310, 4057022), (620, 2028511)]