19725190

素因数分解:

$2^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{4919}}^1$

素因数の和:5327

約数の個数: 16

約数和(自身を含む): 35601120

約数和(自身を除く): 15875930

約数列:

[1, 2, 5, 10, 401, 802, 2005, 4010, 4919, 9838, 24595, 49190, 1972519, 3945038, 9862595, 19725190]

約数ペア:

[(1, 19725190), (2, 9862595), (5, 3945038), (10, 1972519), (401, 49190), (802, 24595), (2005, 9838), (4010, 4919)]