19870810775

素因数分解:

$5^2\times {\mathrm{271}}^1\times {\mathrm{2932961}}^1$

素因数の和:2933242

約数の個数: 12

約数和(自身を含む): 24730735584

約数和(自身を除く): 4859924809

約数列:

[1, 5, 25, 271, 1355, 6775, 2932961, 14664805, 73324025, 794832431, 3974162155, 19870810775]

約数ペア:

[(1, 19870810775), (5, 3974162155), (25, 794832431), (271, 73324025), (1355, 14664805), (6775, 2932961)]