728435456

素因数分解:

$2^8\times 7^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{131}}^1$

素因数の和:290

約数の個数: 144

約数和(自身を含む): 1748355840

約数和(自身を除く): 1019920384

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 32, 56, 58, 64, 107, 112, 116, 128, 131, 203, 214, 224, 232, 256, 262, 406, 428, 448, 464, 524, 749, 812, 856, 896, 917, 928, 1048, 1498, 1624, 1712, 1792, 1834, 1856, 2096, 2996, 3103, 3248, 3424, 3668, 3712, 3799, 4192, 5992, 6206, 6496, 6848, 7336, 7424, 7598, 8384, 11984, 12412, 12992, 13696, 14017, 14672, 15196, 16768, 21721, 23968, 24824, 25984, 26593, 27392, 28034, 29344, 30392, 33536, 43442, 47936, 49648, 51968, 53186, 56068, 58688, 60784, 86884, 95872, 98119, 99296, 106372, 112136, 117376, 121568, 173768, 191744, 196238, 198592, 212744, 224272, 234752, 243136, 347536, 392476, 397184, 406493, 425488, 448544, 486272, 695072, 784952, 794368, 812986, 850976, 897088, 972544, 1390144, 1569904, 1625972, 1701952, 1794176, 2780288, 2845451, 3139808, 3251944, 3403904, 3588352, 5560576, 5690902, 6279616, 6503888, 6807808, 11381804, 12559232, 13007776, 22763608, 25118464, 26015552, 45527216, 52031104, 91054432, 104062208, 182108864, 364217728, 728435456]

約数ペア:

[(1, 728435456), (2, 364217728), (4, 182108864), (7, 104062208), (8, 91054432), (14, 52031104), (16, 45527216), (28, 26015552), (29, 25118464), (32, 22763608), (56, 13007776), (58, 12559232), (64, 11381804), (107, 6807808), (112, 6503888), (116, 6279616), (128, 5690902), (131, 5560576), (203, 3588352), (214, 3403904), (224, 3251944), (232, 3139808), (256, 2845451), (262, 2780288), (406, 1794176), (428, 1701952), (448, 1625972), (464, 1569904), (524, 1390144), (749, 972544), (812, 897088), (856, 850976), (896, 812986), (917, 794368), (928, 784952), (1048, 695072), (1498, 486272), (1624, 448544), (1712, 425488), (1792, 406493), (1834, 397184), (1856, 392476), (2096, 347536), (2996, 243136), (3103, 234752), (3248, 224272), (3424, 212744), (3668, 198592), (3712, 196238), (3799, 191744), (4192, 173768), (5992, 121568), (6206, 117376), (6496, 112136), (6848, 106372), (7336, 99296), (7424, 98119), (7598, 95872), (8384, 86884), (11984, 60784), (12412, 58688), (12992, 56068), (13696, 53186), (14017, 51968), (14672, 49648), (15196, 47936), (16768, 43442), (21721, 33536), (23968, 30392), (24824, 29344), (25984, 28034), (26593, 27392)]