51122380

素因数分解:

$2^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{6571}}^1$

素因数の和:6969

約数の個数: 24

約数和(自身を含む): 107649360

約数和(自身を除く): 56526980

約数列:

[1, 2, 4, 5, 10, 20, 389, 778, 1556, 1945, 3890, 6571, 7780, 13142, 26284, 32855, 65710, 131420, 2556119, 5112238, 10224476, 12780595, 25561190, 51122380]

約数ペア:

[(1, 51122380), (2, 25561190), (4, 12780595), (5, 10224476), (10, 5112238), (20, 2556119), (389, 131420), (778, 65710), (1556, 32855), (1945, 26284), (3890, 13142), (6571, 7780)]