28779080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{65407}}^1$

素因数の和:65429

約数の個数: 32

約数和(自身を含む): 70640640

約数和(自身を除く): 41861560

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 65407, 130814, 261628, 327035, 523256, 654070, 719477, 1308140, 1438954, 2616280, 2877908, 3597385, 5755816, 7194770, 14389540, 28779080]

約数ペア:

[(1, 28779080), (2, 14389540), (4, 7194770), (5, 5755816), (8, 3597385), (10, 2877908), (11, 2616280), (20, 1438954), (22, 1308140), (40, 719477), (44, 654070), (55, 523256), (88, 327035), (110, 261628), (220, 130814), (440, 65407)]