201491480

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{1489}}^1$

素因数の和:1716

約数の個数: 64

約数和(自身を含む): 482760000

約数和(自身を除く): 281268520

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 199, 340, 398, 680, 796, 995, 1489, 1592, 1990, 2978, 3383, 3980, 5956, 6766, 7445, 7960, 11912, 13532, 14890, 16915, 25313, 27064, 29780, 33830, 50626, 59560, 67660, 101252, 126565, 135320, 202504, 253130, 296311, 506260, 592622, 1012520, 1185244, 1481555, 2370488, 2963110, 5037287, 5926220, 10074574, 11852440, 20149148, 25186435, 40298296, 50372870, 100745740, 201491480]

約数ペア:

[(1, 201491480), (2, 100745740), (4, 50372870), (5, 40298296), (8, 25186435), (10, 20149148), (17, 11852440), (20, 10074574), (34, 5926220), (40, 5037287), (68, 2963110), (85, 2370488), (136, 1481555), (170, 1185244), (199, 1012520), (340, 592622), (398, 506260), (680, 296311), (796, 253130), (995, 202504), (1489, 135320), (1592, 126565), (1990, 101252), (2978, 67660), (3383, 59560), (3980, 50626), (5956, 33830), (6766, 29780), (7445, 27064), (7960, 25313), (11912, 16915), (13532, 14890)]