20509728

素因数分解:

$2^5\times 3^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1$

素因数の和:234

約数の個数: 96

約数和(自身を含む): 57153600

約数和(自身を除く): 36643872

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 29, 32, 48, 53, 58, 87, 96, 106, 116, 139, 159, 174, 212, 232, 278, 318, 348, 417, 424, 464, 556, 636, 696, 834, 848, 928, 1112, 1272, 1392, 1537, 1668, 1696, 2224, 2544, 2784, 3074, 3336, 4031, 4448, 4611, 5088, 6148, 6672, 7367, 8062, 9222, 12093, 12296, 13344, 14734, 16124, 18444, 22101, 24186, 24592, 29468, 32248, 36888, 44202, 48372, 49184, 58936, 64496, 73776, 88404, 96744, 117872, 128992, 147552, 176808, 193488, 213643, 235744, 353616, 386976, 427286, 640929, 707232, 854572, 1281858, 1709144, 2563716, 3418288, 5127432, 6836576, 10254864, 20509728]

約数ペア:

[(1, 20509728), (2, 10254864), (3, 6836576), (4, 5127432), (6, 3418288), (8, 2563716), (12, 1709144), (16, 1281858), (24, 854572), (29, 707232), (32, 640929), (48, 427286), (53, 386976), (58, 353616), (87, 235744), (96, 213643), (106, 193488), (116, 176808), (139, 147552), (159, 128992), (174, 117872), (212, 96744), (232, 88404), (278, 73776), (318, 64496), (348, 58936), (417, 49184), (424, 48372), (464, 44202), (556, 36888), (636, 32248), (696, 29468), (834, 24592), (848, 24186), (928, 22101), (1112, 18444), (1272, 16124), (1392, 14734), (1537, 13344), (1668, 12296), (1696, 12093), (2224, 9222), (2544, 8062), (2784, 7367), (3074, 6672), (3336, 6148), (4031, 5088), (4448, 4611)]