389645425

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{439}}^1\times {\mathrm{2731}}^1$

素因数の和:3193

約数の個数: 24

約数和(自身を含む): 521702720

約数和(自身を除く): 132057295

約数列:

[1, 5, 13, 25, 65, 325, 439, 2195, 2731, 5707, 10975, 13655, 28535, 35503, 68275, 142675, 177515, 887575, 1198909, 5994545, 15585817, 29972725, 77929085, 389645425]

約数ペア:

[(1, 389645425), (5, 77929085), (13, 29972725), (25, 15585817), (65, 5994545), (325, 1198909), (439, 887575), (2195, 177515), (2731, 142675), (5707, 68275), (10975, 35503), (13655, 28535)]