77285720

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{19919}}^1$

素因数の和:20027

約数の個数: 32

約数和(自身を含む): 175694400

約数和(自身を除く): 98408680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 19919, 39838, 79676, 99595, 159352, 199190, 398380, 796760, 1932143, 3864286, 7728572, 9660715, 15457144, 19321430, 38642860, 77285720]

約数ペア:

[(1, 77285720), (2, 38642860), (4, 19321430), (5, 15457144), (8, 9660715), (10, 7728572), (20, 3864286), (40, 1932143), (97, 796760), (194, 398380), (388, 199190), (485, 159352), (776, 99595), (970, 79676), (1940, 39838), (3880, 19919)]