51885040

素因数分解:

$2^4\times 5^1\times {\mathrm{648563}}^1$

素因数の和:648576

約数の個数: 20

約数和(自身を含む): 120632904

約数和(自身を除く): 68747864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 648563, 1297126, 2594252, 3242815, 5188504, 6485630, 10377008, 12971260, 25942520, 51885040]

約数ペア:

[(1, 51885040), (2, 25942520), (4, 12971260), (5, 10377008), (8, 6485630), (10, 5188504), (16, 3242815), (20, 2594252), (40, 1297126), (80, 648563)]