6519640

素因数分解:

$2^3\times 5^1\times {\mathrm{389}}^1\times {\mathrm{419}}^1$

素因数の和:819

約数の個数: 32

約数和(自身を含む): 14742000

約数和(自身を除く): 8222360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 389, 419, 778, 838, 1556, 1676, 1945, 2095, 3112, 3352, 3890, 4190, 7780, 8380, 15560, 16760, 162991, 325982, 651964, 814955, 1303928, 1629910, 3259820, 6519640]

約数ペア:

[(1, 6519640), (2, 3259820), (4, 1629910), (5, 1303928), (8, 814955), (10, 651964), (20, 325982), (40, 162991), (389, 16760), (419, 15560), (778, 8380), (838, 7780), (1556, 4190), (1676, 3890), (1945, 3352), (2095, 3112)]