20710240

素因数分解:

$2^5\times 5^1\times {\mathrm{129439}}^1$

素因数の和:129454

約数の個数: 24

約数和(自身を含む): 48928320

約数和(自身を除く): 28218080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 129439, 258878, 517756, 647195, 1035512, 1294390, 2071024, 2588780, 4142048, 5177560, 10355120, 20710240]

約数ペア:

[(1, 20710240), (2, 10355120), (4, 5177560), (5, 4142048), (8, 2588780), (10, 2071024), (16, 1294390), (20, 1035512), (32, 647195), (40, 517756), (80, 258878), (160, 129439)]