206993780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{9923}}^1$

素因数の和:10088

約数の個数: 48

約数和(自身を含む): 500169600

約数和(自身を除く): 293175820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 149, 298, 596, 745, 1043, 1490, 2086, 2980, 4172, 5215, 9923, 10430, 19846, 20860, 39692, 49615, 69461, 99230, 138922, 198460, 277844, 347305, 694610, 1389220, 1478527, 2957054, 5914108, 7392635, 10349689, 14785270, 20699378, 29570540, 41398756, 51748445, 103496890, 206993780]

約数ペア:

[(1, 206993780), (2, 103496890), (4, 51748445), (5, 41398756), (7, 29570540), (10, 20699378), (14, 14785270), (20, 10349689), (28, 7392635), (35, 5914108), (70, 2957054), (140, 1478527), (149, 1389220), (298, 694610), (596, 347305), (745, 277844), (1043, 198460), (1490, 138922), (2086, 99230), (2980, 69461), (4172, 49615), (5215, 39692), (9923, 20860), (10430, 19846)]