20154711472

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1361}}^1\times {\mathrm{6959}}^1$

素因数の和:8354

約数の個数: 80

約数和(自身を含む): 47018419200

約数和(自身を除く): 26863707728

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 112, 133, 152, 266, 304, 532, 1064, 1361, 2128, 2722, 5444, 6959, 9527, 10888, 13918, 19054, 21776, 25859, 27836, 38108, 48713, 51718, 55672, 76216, 97426, 103436, 111344, 132221, 152432, 181013, 194852, 206872, 264442, 362026, 389704, 413744, 528884, 724052, 779408, 925547, 1057768, 1448104, 1851094, 2115536, 2896208, 3702188, 7404376, 9471199, 14808752, 18942398, 37884796, 66298393, 75769592, 132596786, 151539184, 179952781, 265193572, 359905562, 530387144, 719811124, 1060774288, 1259669467, 1439622248, 2519338934, 2879244496, 5038677868, 10077355736, 20154711472]

約数ペア:

[(1, 20154711472), (2, 10077355736), (4, 5038677868), (7, 2879244496), (8, 2519338934), (14, 1439622248), (16, 1259669467), (19, 1060774288), (28, 719811124), (38, 530387144), (56, 359905562), (76, 265193572), (112, 179952781), (133, 151539184), (152, 132596786), (266, 75769592), (304, 66298393), (532, 37884796), (1064, 18942398), (1361, 14808752), (2128, 9471199), (2722, 7404376), (5444, 3702188), (6959, 2896208), (9527, 2115536), (10888, 1851094), (13918, 1448104), (19054, 1057768), (21776, 925547), (25859, 779408), (27836, 724052), (38108, 528884), (48713, 413744), (51718, 389704), (55672, 362026), (76216, 264442), (97426, 206872), (103436, 194852), (111344, 181013), (132221, 152432)]