268501820

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{138403}}^1$

素因数の和:138509

約数の個数: 24

約数和(自身を含む): 569670864

約数和(自身を除く): 301169044

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 138403, 276806, 553612, 692015, 1384030, 2768060, 13425091, 26850182, 53700364, 67125455, 134250910, 268501820]

約数ペア:

[(1, 268501820), (2, 134250910), (4, 67125455), (5, 53700364), (10, 26850182), (20, 13425091), (97, 2768060), (194, 1384030), (388, 692015), (485, 553612), (970, 276806), (1940, 138403)]