640555776

素因数分解:

$2^8\times 3^5\times 7^1\times {\mathrm{1471}}^1$

素因数の和:1509

約数の個数: 216

約数和(自身を含む): 2190383104

約数和(自身を除く): 1549827328

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 32, 36, 42, 48, 54, 56, 63, 64, 72, 81, 84, 96, 108, 112, 126, 128, 144, 162, 168, 189, 192, 216, 224, 243, 252, 256, 288, 324, 336, 378, 384, 432, 448, 486, 504, 567, 576, 648, 672, 756, 768, 864, 896, 972, 1008, 1134, 1152, 1296, 1344, 1471, 1512, 1701, 1728, 1792, 1944, 2016, 2268, 2304, 2592, 2688, 2942, 3024, 3402, 3456, 3888, 4032, 4413, 4536, 5184, 5376, 5884, 6048, 6804, 6912, 7776, 8064, 8826, 9072, 10297, 10368, 11768, 12096, 13239, 13608, 15552, 16128, 17652, 18144, 20594, 20736, 23536, 24192, 26478, 27216, 30891, 31104, 35304, 36288, 39717, 41188, 47072, 48384, 52956, 54432, 61782, 62208, 70608, 72576, 79434, 82376, 92673, 94144, 105912, 108864, 119151, 123564, 141216, 145152, 158868, 164752, 185346, 188288, 211824, 217728, 238302, 247128, 278019, 282432, 317736, 329504, 357453, 370692, 376576, 423648, 435456, 476604, 494256, 556038, 564864, 635472, 659008, 714906, 741384, 834057, 847296, 953208, 988512, 1112076, 1129728, 1270944, 1318016, 1429812, 1482768, 1668114, 1694592, 1906416, 1977024, 2224152, 2502171, 2541888, 2636032, 2859624, 2965536, 3336228, 3389184, 3812832, 3954048, 4448304, 5004342, 5083776, 5719248, 5931072, 6672456, 7625664, 7908096, 8896608, 10008684, 10167552, 11438496, 11862144, 13344912, 15251328, 17793216, 20017368, 22876992, 23724288, 26689824, 30502656, 35586432, 40034736, 45753984, 53379648, 71172864, 80069472, 91507968, 106759296, 160138944, 213518592, 320277888, 640555776]

約数ペア:

[(1, 640555776), (2, 320277888), (3, 213518592), (4, 160138944), (6, 106759296), (7, 91507968), (8, 80069472), (9, 71172864), (12, 53379648), (14, 45753984), (16, 40034736), (18, 35586432), (21, 30502656), (24, 26689824), (27, 23724288), (28, 22876992), (32, 20017368), (36, 17793216), (42, 15251328), (48, 13344912), (54, 11862144), (56, 11438496), (63, 10167552), (64, 10008684), (72, 8896608), (81, 7908096), (84, 7625664), (96, 6672456), (108, 5931072), (112, 5719248), (126, 5083776), (128, 5004342), (144, 4448304), (162, 3954048), (168, 3812832), (189, 3389184), (192, 3336228), (216, 2965536), (224, 2859624), (243, 2636032), (252, 2541888), (256, 2502171), (288, 2224152), (324, 1977024), (336, 1906416), (378, 1694592), (384, 1668114), (432, 1482768), (448, 1429812), (486, 1318016), (504, 1270944), (567, 1129728), (576, 1112076), (648, 988512), (672, 953208), (756, 847296), (768, 834057), (864, 741384), (896, 714906), (972, 659008), (1008, 635472), (1134, 564864), (1152, 556038), (1296, 494256), (1344, 476604), (1471, 435456), (1512, 423648), (1701, 376576), (1728, 370692), (1792, 357453), (1944, 329504), (2016, 317736), (2268, 282432), (2304, 278019), (2592, 247128), (2688, 238302), (2942, 217728), (3024, 211824), (3402, 188288), (3456, 185346), (3888, 164752), (4032, 158868), (4413, 145152), (4536, 141216), (5184, 123564), (5376, 119151), (5884, 108864), (6048, 105912), (6804, 94144), (6912, 92673), (7776, 82376), (8064, 79434), (8826, 72576), (9072, 70608), (10297, 62208), (10368, 61782), (11768, 54432), (12096, 52956), (13239, 48384), (13608, 47072), (15552, 41188), (16128, 39717), (17652, 36288), (18144, 35304), (20594, 31104), (20736, 30891), (23536, 27216), (24192, 26478)]