20994620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{55249}}^1$

素因数の和:55277

約数の個数: 24

約数和(自身を含む): 46410000

約数和(自身を除く): 25415380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 55249, 110498, 220996, 276245, 552490, 1049731, 1104980, 2099462, 4198924, 5248655, 10497310, 20994620]

約数ペア:

[(1, 20994620), (2, 10497310), (4, 5248655), (5, 4198924), (10, 2099462), (19, 1104980), (20, 1049731), (38, 552490), (76, 276245), (95, 220996), (190, 110498), (380, 55249)]