20000416

素因数分解:

$2^5\times {\mathrm{71}}^1\times {\mathrm{8803}}^1$

素因数の和:8884

約数の個数: 24

約数和(自身を含む): 39934944

約数和(自身を除く): 19934528

約数列:

[1, 2, 4, 8, 16, 32, 71, 142, 284, 568, 1136, 2272, 8803, 17606, 35212, 70424, 140848, 281696, 625013, 1250026, 2500052, 5000104, 10000208, 20000416]

約数ペア:

[(1, 20000416), (2, 10000208), (4, 5000104), (8, 2500052), (16, 1250026), (32, 625013), (71, 281696), (142, 140848), (284, 70424), (568, 35212), (1136, 17606), (2272, 8803)]