287134820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2050963}}^1$

素因数の和:2050979

約数の個数: 24

約数和(自身を含む): 689123904

約数和(自身を除く): 401989084

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2050963, 4101926, 8203852, 10254815, 14356741, 20509630, 28713482, 41019260, 57426964, 71783705, 143567410, 287134820]

約数ペア:

[(1, 287134820), (2, 143567410), (4, 71783705), (5, 57426964), (7, 41019260), (10, 28713482), (14, 20509630), (20, 14356741), (28, 10254815), (35, 8203852), (70, 4101926), (140, 2050963)]