1287761780

素因数分解:

$2^2\times 5^1\times {\mathrm{317}}^1\times {\mathrm{203117}}^1$

素因数の和:203443

約数の個数: 24

約数和(自身を含む): 2712844008

約数和(自身を除く): 1425082228

約数列:

[1, 2, 4, 5, 10, 20, 317, 634, 1268, 1585, 3170, 6340, 203117, 406234, 812468, 1015585, 2031170, 4062340, 64388089, 128776178, 257552356, 321940445, 643880890, 1287761780]

約数ペア:

[(1, 1287761780), (2, 643880890), (4, 321940445), (5, 257552356), (10, 128776178), (20, 64388089), (317, 4062340), (634, 2031170), (1268, 1015585), (1585, 812468), (3170, 406234), (6340, 203117)]