28005700

素因数分解:

$2^2\times 5^2\times {\mathrm{103}}^1\times {\mathrm{2719}}^1$

素因数の和:2836

約数の個数: 36

約数和(自身を含む): 61384960

約数和(自身を除く): 33379260

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 103, 206, 412, 515, 1030, 2060, 2575, 2719, 5150, 5438, 10300, 10876, 13595, 27190, 54380, 67975, 135950, 271900, 280057, 560114, 1120228, 1400285, 2800570, 5601140, 7001425, 14002850, 28005700]

約数ペア:

[(1, 28005700), (2, 14002850), (4, 7001425), (5, 5601140), (10, 2800570), (20, 1400285), (25, 1120228), (50, 560114), (100, 280057), (103, 271900), (206, 135950), (412, 67975), (515, 54380), (1030, 27190), (2060, 13595), (2575, 10876), (2719, 10300), (5150, 5438)]