261657216

素因数分解:

$2^7\times 3^4\times {\mathrm{25237}}^1$

素因数の和:25263

約数の個数: 80

約数和(自身を含む): 778718490

約数和(自身を除く): 517061274

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 64, 72, 81, 96, 108, 128, 144, 162, 192, 216, 288, 324, 384, 432, 576, 648, 864, 1152, 1296, 1728, 2592, 3456, 5184, 10368, 25237, 50474, 75711, 100948, 151422, 201896, 227133, 302844, 403792, 454266, 605688, 681399, 807584, 908532, 1211376, 1362798, 1615168, 1817064, 2044197, 2422752, 2725596, 3230336, 3634128, 4088394, 4845504, 5451192, 7268256, 8176788, 9691008, 10902384, 14536512, 16353576, 21804768, 29073024, 32707152, 43609536, 65414304, 87219072, 130828608, 261657216]

約数ペア:

[(1, 261657216), (2, 130828608), (3, 87219072), (4, 65414304), (6, 43609536), (8, 32707152), (9, 29073024), (12, 21804768), (16, 16353576), (18, 14536512), (24, 10902384), (27, 9691008), (32, 8176788), (36, 7268256), (48, 5451192), (54, 4845504), (64, 4088394), (72, 3634128), (81, 3230336), (96, 2725596), (108, 2422752), (128, 2044197), (144, 1817064), (162, 1615168), (192, 1362798), (216, 1211376), (288, 908532), (324, 807584), (384, 681399), (432, 605688), (576, 454266), (648, 403792), (864, 302844), (1152, 227133), (1296, 201896), (1728, 151422), (2592, 100948), (3456, 75711), (5184, 50474), (10368, 25237)]