18986367080

素因数分解:

$2^3\times 5^1\times {\mathrm{383}}^1\times {\mathrm{1239319}}^1$

素因数の和:1239713

約数の個数: 32

約数和(自身を含む): 42830899200

約数和(自身を除く): 23844532120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 383, 766, 1532, 1915, 3064, 3830, 7660, 15320, 1239319, 2478638, 4957276, 6196595, 9914552, 12393190, 24786380, 49572760, 474659177, 949318354, 1898636708, 2373295885, 3797273416, 4746591770, 9493183540, 18986367080]

約数ペア:

[(1, 18986367080), (2, 9493183540), (4, 4746591770), (5, 3797273416), (8, 2373295885), (10, 1898636708), (20, 949318354), (40, 474659177), (383, 49572760), (766, 24786380), (1532, 12393190), (1915, 9914552), (3064, 6196595), (3830, 4957276), (7660, 2478638), (15320, 1239319)]