1990332008

素因数分解:

$2^3\times 7^1\times {\mathrm{1787}}^1\times {\mathrm{19889}}^1$

素因数の和:21689

約数の個数: 32

約数和(自身を含む): 4267598400

約数和(自身を除く): 2277266392

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 1787, 3574, 7148, 12509, 14296, 19889, 25018, 39778, 50036, 79556, 100072, 139223, 159112, 278446, 556892, 1113784, 35541643, 71083286, 142166572, 248791501, 284333144, 497583002, 995166004, 1990332008]

約数ペア:

[(1, 1990332008), (2, 995166004), (4, 497583002), (7, 284333144), (8, 248791501), (14, 142166572), (28, 71083286), (56, 35541643), (1787, 1113784), (3574, 556892), (7148, 278446), (12509, 159112), (14296, 139223), (19889, 100072), (25018, 79556), (39778, 50036)]