81288004

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{3251}}^1$

素因数の和:3328

約数の個数: 48

約数和(自身を含む): 174827520

約数和(自身を除く): 93539516

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 47, 76, 94, 133, 188, 266, 329, 532, 658, 893, 1316, 1786, 3251, 3572, 6251, 6502, 12502, 13004, 22757, 25004, 45514, 61769, 91028, 123538, 152797, 247076, 305594, 432383, 611188, 864766, 1069579, 1729532, 2139158, 2903143, 4278316, 5806286, 11612572, 20322001, 40644002, 81288004]

約数ペア:

[(1, 81288004), (2, 40644002), (4, 20322001), (7, 11612572), (14, 5806286), (19, 4278316), (28, 2903143), (38, 2139158), (47, 1729532), (76, 1069579), (94, 864766), (133, 611188), (188, 432383), (266, 305594), (329, 247076), (532, 152797), (658, 123538), (893, 91028), (1316, 61769), (1786, 45514), (3251, 25004), (3572, 22757), (6251, 13004), (6502, 12502)]