261387504

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{257}}^1\times {\mathrm{1009}}^1$

素因数の和:1287

約数の個数: 120

約数和(自身を含む): 840109920

約数和(自身を除く): 578722416

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 48, 56, 63, 72, 84, 112, 126, 144, 168, 252, 257, 336, 504, 514, 771, 1008, 1009, 1028, 1542, 1799, 2018, 2056, 2313, 3027, 3084, 3598, 4036, 4112, 4626, 5397, 6054, 6168, 7063, 7196, 8072, 9081, 9252, 10794, 12108, 12336, 14126, 14392, 16144, 16191, 18162, 18504, 21189, 21588, 24216, 28252, 28784, 32382, 36324, 37008, 42378, 43176, 48432, 56504, 63567, 64764, 72648, 84756, 86352, 113008, 127134, 129528, 145296, 169512, 254268, 259056, 259313, 339024, 508536, 518626, 777939, 1017072, 1037252, 1555878, 1815191, 2074504, 2333817, 3111756, 3630382, 4149008, 4667634, 5445573, 6223512, 7260764, 9335268, 10891146, 12447024, 14521528, 16336719, 18670536, 21782292, 29043056, 32673438, 37341072, 43564584, 65346876, 87129168, 130693752, 261387504]

約数ペア:

[(1, 261387504), (2, 130693752), (3, 87129168), (4, 65346876), (6, 43564584), (7, 37341072), (8, 32673438), (9, 29043056), (12, 21782292), (14, 18670536), (16, 16336719), (18, 14521528), (21, 12447024), (24, 10891146), (28, 9335268), (36, 7260764), (42, 6223512), (48, 5445573), (56, 4667634), (63, 4149008), (72, 3630382), (84, 3111756), (112, 2333817), (126, 2074504), (144, 1815191), (168, 1555878), (252, 1037252), (257, 1017072), (336, 777939), (504, 518626), (514, 508536), (771, 339024), (1008, 259313), (1009, 259056), (1028, 254268), (1542, 169512), (1799, 145296), (2018, 129528), (2056, 127134), (2313, 113008), (3027, 86352), (3084, 84756), (3598, 72648), (4036, 64764), (4112, 63567), (4626, 56504), (5397, 48432), (6054, 43176), (6168, 42378), (7063, 37008), (7196, 36324), (8072, 32382), (9081, 28784), (9252, 28252), (10794, 24216), (12108, 21588), (12336, 21189), (14126, 18504), (14392, 18162), (16144, 16191)]