27777260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{198409}}^1$

素因数の和:198425

約数の個数: 24

約数和(自身を含む): 66665760

約数和(自身を除く): 38888500

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 198409, 396818, 793636, 992045, 1388863, 1984090, 2777726, 3968180, 5555452, 6944315, 13888630, 27777260]

約数ペア:

[(1, 27777260), (2, 13888630), (4, 6944315), (5, 5555452), (7, 3968180), (10, 2777726), (14, 1984090), (20, 1388863), (28, 992045), (35, 793636), (70, 396818), (140, 198409)]