257487552

素因数分解:

$2^6\times 3^3\times 7^2\times {\mathrm{3041}}^1$

素因数の和:3076

約数の個数: 168

約数和(自身を含む): 880841520

約数和(自身を除く): 623353968

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 32, 36, 42, 48, 49, 54, 56, 63, 64, 72, 84, 96, 98, 108, 112, 126, 144, 147, 168, 189, 192, 196, 216, 224, 252, 288, 294, 336, 378, 392, 432, 441, 448, 504, 576, 588, 672, 756, 784, 864, 882, 1008, 1176, 1323, 1344, 1512, 1568, 1728, 1764, 2016, 2352, 2646, 3024, 3041, 3136, 3528, 4032, 4704, 5292, 6048, 6082, 7056, 9123, 9408, 10584, 12096, 12164, 14112, 18246, 21168, 21287, 24328, 27369, 28224, 36492, 42336, 42574, 48656, 54738, 63861, 72984, 82107, 84672, 85148, 97312, 109476, 127722, 145968, 149009, 164214, 170296, 191583, 194624, 218952, 255444, 291936, 298018, 328428, 340592, 383166, 437904, 447027, 510888, 574749, 583872, 596036, 656856, 681184, 766332, 875808, 894054, 1021776, 1149498, 1192072, 1313712, 1341081, 1362368, 1532664, 1751616, 1788108, 2043552, 2298996, 2384144, 2627424, 2682162, 3065328, 3576216, 4023243, 4087104, 4597992, 4768288, 5254848, 5364324, 6130656, 7152432, 8046486, 9195984, 9536576, 10728648, 12261312, 14304864, 16092972, 18391968, 21457296, 28609728, 32185944, 36783936, 42914592, 64371888, 85829184, 128743776, 257487552]

約数ペア:

[(1, 257487552), (2, 128743776), (3, 85829184), (4, 64371888), (6, 42914592), (7, 36783936), (8, 32185944), (9, 28609728), (12, 21457296), (14, 18391968), (16, 16092972), (18, 14304864), (21, 12261312), (24, 10728648), (27, 9536576), (28, 9195984), (32, 8046486), (36, 7152432), (42, 6130656), (48, 5364324), (49, 5254848), (54, 4768288), (56, 4597992), (63, 4087104), (64, 4023243), (72, 3576216), (84, 3065328), (96, 2682162), (98, 2627424), (108, 2384144), (112, 2298996), (126, 2043552), (144, 1788108), (147, 1751616), (168, 1532664), (189, 1362368), (192, 1341081), (196, 1313712), (216, 1192072), (224, 1149498), (252, 1021776), (288, 894054), (294, 875808), (336, 766332), (378, 681184), (392, 656856), (432, 596036), (441, 583872), (448, 574749), (504, 510888), (576, 447027), (588, 437904), (672, 383166), (756, 340592), (784, 328428), (864, 298018), (882, 291936), (1008, 255444), (1176, 218952), (1323, 194624), (1344, 191583), (1512, 170296), (1568, 164214), (1728, 149009), (1764, 145968), (2016, 127722), (2352, 109476), (2646, 97312), (3024, 85148), (3041, 84672), (3136, 82107), (3528, 72984), (4032, 63861), (4704, 54738), (5292, 48656), (6048, 42574), (6082, 42336), (7056, 36492), (9123, 28224), (9408, 27369), (10584, 24328), (12096, 21287), (12164, 21168), (14112, 18246)]