154571440

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{19919}}^1$

素因数の和:20029

約数の個数: 40

約数和(自身を含む): 363101760

約数和(自身を除く): 208530320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 194, 388, 485, 776, 970, 1552, 1940, 3880, 7760, 19919, 39838, 79676, 99595, 159352, 199190, 318704, 398380, 796760, 1593520, 1932143, 3864286, 7728572, 9660715, 15457144, 19321430, 30914288, 38642860, 77285720, 154571440]

約数ペア:

[(1, 154571440), (2, 77285720), (4, 38642860), (5, 30914288), (8, 19321430), (10, 15457144), (16, 9660715), (20, 7728572), (40, 3864286), (80, 1932143), (97, 1593520), (194, 796760), (388, 398380), (485, 318704), (776, 199190), (970, 159352), (1552, 99595), (1940, 79676), (3880, 39838), (7760, 19919)]