20728764145

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{3835109}}^1$

素因数の和:3835184

約数の個数: 16

約数和(自身を含む): 26508280320

約数和(自身を除く): 5779516175

約数列:

[1, 5, 23, 47, 115, 235, 1081, 5405, 3835109, 19175545, 88207507, 180250123, 441037535, 901250615, 4145752829, 20728764145]

約数ペア:

[(1, 20728764145), (5, 4145752829), (23, 901250615), (47, 441037535), (115, 180250123), (235, 88207507), (1081, 19175545), (5405, 3835109)]