51286240

素因数分解:

$2^5\times 5^1\times {\mathrm{320539}}^1$

素因数の和:320554

約数の個数: 24

約数和(自身を含む): 121164120

約数和(自身を除く): 69877880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 320539, 641078, 1282156, 1602695, 2564312, 3205390, 5128624, 6410780, 10257248, 12821560, 25643120, 51286240]

約数ペア:

[(1, 51286240), (2, 25643120), (4, 12821560), (5, 10257248), (8, 6410780), (10, 5128624), (16, 3205390), (20, 2564312), (32, 1602695), (40, 1282156), (80, 641078), (160, 320539)]