51257840

素因数分解:

$2^4\times 5^1\times {\mathrm{449}}^1\times {\mathrm{1427}}^1$

素因数の和:1889

約数の個数: 40

約数和(自身を含む): 119523600

約数和(自身を除く): 68265760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 449, 898, 1427, 1796, 2245, 2854, 3592, 4490, 5708, 7135, 7184, 8980, 11416, 14270, 17960, 22832, 28540, 35920, 57080, 114160, 640723, 1281446, 2562892, 3203615, 5125784, 6407230, 10251568, 12814460, 25628920, 51257840]

約数ペア:

[(1, 51257840), (2, 25628920), (4, 12814460), (5, 10251568), (8, 6407230), (10, 5125784), (16, 3203615), (20, 2562892), (40, 1281446), (80, 640723), (449, 114160), (898, 57080), (1427, 35920), (1796, 28540), (2245, 22832), (2854, 17960), (3592, 14270), (4490, 11416), (5708, 8980), (7135, 7184)]