128979280

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{34303}}^1$

素因数の和:34363

約数の個数: 40

約数和(自身を含む): 306266112

約数和(自身を除く): 177286832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 188, 235, 376, 470, 752, 940, 1880, 3760, 34303, 68606, 137212, 171515, 274424, 343030, 548848, 686060, 1372120, 1612241, 2744240, 3224482, 6448964, 8061205, 12897928, 16122410, 25795856, 32244820, 64489640, 128979280]

約数ペア:

[(1, 128979280), (2, 64489640), (4, 32244820), (5, 25795856), (8, 16122410), (10, 12897928), (16, 8061205), (20, 6448964), (40, 3224482), (47, 2744240), (80, 1612241), (94, 1372120), (188, 686060), (235, 548848), (376, 343030), (470, 274424), (752, 171515), (940, 137212), (1880, 68606), (3760, 34303)]