123276520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{911}}^1$

素因数の和:1138

約数の個数: 64

約数和(自身を含む): 295488000

約数和(自身を除く): 172211480

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 199, 340, 398, 680, 796, 911, 995, 1592, 1822, 1990, 3383, 3644, 3980, 4555, 6766, 7288, 7960, 9110, 13532, 15487, 16915, 18220, 27064, 30974, 33830, 36440, 61948, 67660, 77435, 123896, 135320, 154870, 181289, 309740, 362578, 619480, 725156, 906445, 1450312, 1812890, 3081913, 3625780, 6163826, 7251560, 12327652, 15409565, 24655304, 30819130, 61638260, 123276520]

約数ペア:

[(1, 123276520), (2, 61638260), (4, 30819130), (5, 24655304), (8, 15409565), (10, 12327652), (17, 7251560), (20, 6163826), (34, 3625780), (40, 3081913), (68, 1812890), (85, 1450312), (136, 906445), (170, 725156), (199, 619480), (340, 362578), (398, 309740), (680, 181289), (796, 154870), (911, 135320), (995, 123896), (1592, 77435), (1822, 67660), (1990, 61948), (3383, 36440), (3644, 33830), (3980, 30974), (4555, 27064), (6766, 18220), (7288, 16915), (7960, 15487), (9110, 13532)]