81259164

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{7499}}^1$

素因数の和:7559

約数の個数: 72

約数和(自身を含む): 240240000

約数和(自身を除く): 158980836

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 43, 63, 84, 86, 126, 129, 172, 252, 258, 301, 387, 516, 602, 774, 903, 1204, 1548, 1806, 2709, 3612, 5418, 7499, 10836, 14998, 22497, 29996, 44994, 52493, 67491, 89988, 104986, 134982, 157479, 209972, 269964, 314958, 322457, 472437, 629916, 644914, 944874, 967371, 1289828, 1889748, 1934742, 2257199, 2902113, 3869484, 4514398, 5804226, 6771597, 9028796, 11608452, 13543194, 20314791, 27086388, 40629582, 81259164]

約数ペア:

[(1, 81259164), (2, 40629582), (3, 27086388), (4, 20314791), (6, 13543194), (7, 11608452), (9, 9028796), (12, 6771597), (14, 5804226), (18, 4514398), (21, 3869484), (28, 2902113), (36, 2257199), (42, 1934742), (43, 1889748), (63, 1289828), (84, 967371), (86, 944874), (126, 644914), (129, 629916), (172, 472437), (252, 322457), (258, 314958), (301, 269964), (387, 209972), (516, 157479), (602, 134982), (774, 104986), (903, 89988), (1204, 67491), (1548, 52493), (1806, 44994), (2709, 29996), (3612, 22497), (5418, 14998), (7499, 10836)]