20289680

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{11027}}^1$

素因数の和:11063

約数の個数: 40

約数和(自身を含む): 49228992

約数和(自身を除く): 28939312

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 11027, 22054, 44108, 55135, 88216, 110270, 176432, 220540, 253621, 441080, 507242, 882160, 1014484, 1268105, 2028968, 2536210, 4057936, 5072420, 10144840, 20289680]

約数ペア:

[(1, 20289680), (2, 10144840), (4, 5072420), (5, 4057936), (8, 2536210), (10, 2028968), (16, 1268105), (20, 1014484), (23, 882160), (40, 507242), (46, 441080), (80, 253621), (92, 220540), (115, 176432), (184, 110270), (230, 88216), (368, 55135), (460, 44108), (920, 22054), (1840, 11027)]