131128880

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{86269}}^1$

素因数の和:86301

約数の個数: 40

約数和(自身を含む): 320924400

約数和(自身を除く): 189795520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 86269, 172538, 345076, 431345, 690152, 862690, 1380304, 1639111, 1725380, 3278222, 3450760, 6556444, 6901520, 8195555, 13112888, 16391110, 26225776, 32782220, 65564440, 131128880]

約数ペア:

[(1, 131128880), (2, 65564440), (4, 32782220), (5, 26225776), (8, 16391110), (10, 13112888), (16, 8195555), (19, 6901520), (20, 6556444), (38, 3450760), (40, 3278222), (76, 1725380), (80, 1639111), (95, 1380304), (152, 862690), (190, 690152), (304, 431345), (380, 345076), (760, 172538), (1520, 86269)]