261410072

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:277

約数の個数: 128

約数和(自身を含む): 638668800

約数和(自身を除く): 377258728

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 43, 44, 56, 71, 77, 86, 88, 139, 142, 154, 172, 278, 284, 301, 308, 344, 473, 497, 556, 568, 602, 616, 781, 946, 973, 994, 1112, 1204, 1529, 1562, 1892, 1946, 1988, 2408, 3053, 3058, 3124, 3311, 3784, 3892, 3976, 5467, 5977, 6106, 6116, 6248, 6622, 7784, 9869, 10703, 10934, 11954, 12212, 12232, 13244, 19738, 21371, 21406, 21868, 23908, 24424, 26488, 33583, 39476, 41839, 42742, 42812, 43736, 47816, 65747, 67166, 69083, 78952, 83678, 85484, 85624, 108559, 131494, 134332, 138166, 167356, 170968, 217118, 235081, 262988, 268664, 276332, 334712, 424367, 434236, 460229, 470162, 525976, 552664, 759913, 848734, 868472, 920458, 940324, 1519826, 1697468, 1840916, 1880648, 2970569, 3039652, 3394936, 3681832, 4668037, 5941138, 6079304, 9336074, 11882276, 18672148, 23764552, 32676259, 37344296, 65352518, 130705036, 261410072]

約数ペア:

[(1, 261410072), (2, 130705036), (4, 65352518), (7, 37344296), (8, 32676259), (11, 23764552), (14, 18672148), (22, 11882276), (28, 9336074), (43, 6079304), (44, 5941138), (56, 4668037), (71, 3681832), (77, 3394936), (86, 3039652), (88, 2970569), (139, 1880648), (142, 1840916), (154, 1697468), (172, 1519826), (278, 940324), (284, 920458), (301, 868472), (308, 848734), (344, 759913), (473, 552664), (497, 525976), (556, 470162), (568, 460229), (602, 434236), (616, 424367), (781, 334712), (946, 276332), (973, 268664), (994, 262988), (1112, 235081), (1204, 217118), (1529, 170968), (1562, 167356), (1892, 138166), (1946, 134332), (1988, 131494), (2408, 108559), (3053, 85624), (3058, 85484), (3124, 83678), (3311, 78952), (3784, 69083), (3892, 67166), (3976, 65747), (5467, 47816), (5977, 43736), (6106, 42812), (6116, 42742), (6248, 41839), (6622, 39476), (7784, 33583), (9869, 26488), (10703, 24424), (10934, 23908), (11954, 21868), (12212, 21406), (12232, 21371), (13244, 19738)]