208529660

素因数分解:

$2^2\times 5^1\times {\mathrm{557}}^1\times {\mathrm{18719}}^1$

素因数の和:19285

約数の個数: 24

約数和(自身を含む): 438721920

約数和(自身を除く): 230192260

約数列:

[1, 2, 4, 5, 10, 20, 557, 1114, 2228, 2785, 5570, 11140, 18719, 37438, 74876, 93595, 187190, 374380, 10426483, 20852966, 41705932, 52132415, 104264830, 208529660]

約数ペア:

[(1, 208529660), (2, 104264830), (4, 52132415), (5, 41705932), (10, 20852966), (20, 10426483), (557, 374380), (1114, 187190), (2228, 93595), (2785, 74876), (5570, 37438), (11140, 18719)]