20407128

素因数分解:

$2^3\times 3^1\times 7^3\times {\mathrm{37}}^1\times {\mathrm{67}}^1$

素因数の和:134

約数の個数: 128

約数和(自身を含む): 62016000

約数和(自身を除く): 41608872

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 37, 42, 49, 56, 67, 74, 84, 98, 111, 134, 147, 148, 168, 196, 201, 222, 259, 268, 294, 296, 343, 392, 402, 444, 469, 518, 536, 588, 686, 777, 804, 888, 938, 1029, 1036, 1176, 1372, 1407, 1554, 1608, 1813, 1876, 2058, 2072, 2479, 2744, 2814, 3108, 3283, 3626, 3752, 4116, 4958, 5439, 5628, 6216, 6566, 7252, 7437, 8232, 9849, 9916, 10878, 11256, 12691, 13132, 14504, 14874, 17353, 19698, 19832, 21756, 22981, 25382, 26264, 29748, 34706, 38073, 39396, 43512, 45962, 50764, 52059, 59496, 68943, 69412, 76146, 78792, 91924, 101528, 104118, 121471, 137886, 138824, 152292, 183848, 208236, 242942, 275772, 304584, 364413, 416472, 485884, 551544, 728826, 850297, 971768, 1457652, 1700594, 2550891, 2915304, 3401188, 5101782, 6802376, 10203564, 20407128]

約数ペア:

[(1, 20407128), (2, 10203564), (3, 6802376), (4, 5101782), (6, 3401188), (7, 2915304), (8, 2550891), (12, 1700594), (14, 1457652), (21, 971768), (24, 850297), (28, 728826), (37, 551544), (42, 485884), (49, 416472), (56, 364413), (67, 304584), (74, 275772), (84, 242942), (98, 208236), (111, 183848), (134, 152292), (147, 138824), (148, 137886), (168, 121471), (196, 104118), (201, 101528), (222, 91924), (259, 78792), (268, 76146), (294, 69412), (296, 68943), (343, 59496), (392, 52059), (402, 50764), (444, 45962), (469, 43512), (518, 39396), (536, 38073), (588, 34706), (686, 29748), (777, 26264), (804, 25382), (888, 22981), (938, 21756), (1029, 19832), (1036, 19698), (1176, 17353), (1372, 14874), (1407, 14504), (1554, 13132), (1608, 12691), (1813, 11256), (1876, 10878), (2058, 9916), (2072, 9849), (2479, 8232), (2744, 7437), (2814, 7252), (3108, 6566), (3283, 6216), (3626, 5628), (3752, 5439), (4116, 4958)]