78713560

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{20287}}^1$

素因数の和:20395

約数の個数: 32

約数和(自身を含む): 178940160

約数和(自身を除く): 100226600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 20287, 40574, 81148, 101435, 162296, 202870, 405740, 811480, 1967839, 3935678, 7871356, 9839195, 15742712, 19678390, 39356780, 78713560]

約数ペア:

[(1, 78713560), (2, 39356780), (4, 19678390), (5, 15742712), (8, 9839195), (10, 7871356), (20, 3935678), (40, 1967839), (97, 811480), (194, 405740), (388, 202870), (485, 162296), (776, 101435), (970, 81148), (1940, 40574), (3880, 20287)]