2571080

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1$

素因数の和:246

約数の個数: 64

約数和(自身を含む): 6480000

約数和(自身を除く): 3908920

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 34, 38, 40, 68, 76, 85, 95, 136, 152, 170, 190, 199, 323, 340, 380, 398, 646, 680, 760, 796, 995, 1292, 1592, 1615, 1990, 2584, 3230, 3383, 3781, 3980, 6460, 6766, 7562, 7960, 12920, 13532, 15124, 16915, 18905, 27064, 30248, 33830, 37810, 64277, 67660, 75620, 128554, 135320, 151240, 257108, 321385, 514216, 642770, 1285540, 2571080]

約数ペア:

[(1, 2571080), (2, 1285540), (4, 642770), (5, 514216), (8, 321385), (10, 257108), (17, 151240), (19, 135320), (20, 128554), (34, 75620), (38, 67660), (40, 64277), (68, 37810), (76, 33830), (85, 30248), (95, 27064), (136, 18905), (152, 16915), (170, 15124), (190, 13532), (199, 12920), (323, 7960), (340, 7562), (380, 6766), (398, 6460), (646, 3980), (680, 3781), (760, 3383), (796, 3230), (995, 2584), (1292, 1990), (1592, 1615)]