12921520

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{8501}}^1$

素因数の和:8533

約数の個数: 40

約数和(自身を含む): 31627440

約数和(自身を除く): 18705920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 8501, 17002, 34004, 42505, 68008, 85010, 136016, 161519, 170020, 323038, 340040, 646076, 680080, 807595, 1292152, 1615190, 2584304, 3230380, 6460760, 12921520]

約数ペア:

[(1, 12921520), (2, 6460760), (4, 3230380), (5, 2584304), (8, 1615190), (10, 1292152), (16, 807595), (19, 680080), (20, 646076), (38, 340040), (40, 323038), (76, 170020), (80, 161519), (95, 136016), (152, 85010), (190, 68008), (304, 42505), (380, 34004), (760, 17002), (1520, 8501)]