28311808

素因数分解:

$2^8\times 7^2\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:128

約数の個数: 108

約数和(自身を含む): 68623212

約数和(自身を除く): 40311404

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 37, 49, 56, 61, 64, 74, 98, 112, 122, 128, 148, 196, 224, 244, 256, 259, 296, 392, 427, 448, 488, 518, 592, 784, 854, 896, 976, 1036, 1184, 1568, 1708, 1792, 1813, 1952, 2072, 2257, 2368, 2989, 3136, 3416, 3626, 3904, 4144, 4514, 4736, 5978, 6272, 6832, 7252, 7808, 8288, 9028, 9472, 11956, 12544, 13664, 14504, 15616, 15799, 16576, 18056, 23912, 27328, 29008, 31598, 33152, 36112, 47824, 54656, 58016, 63196, 66304, 72224, 95648, 109312, 110593, 116032, 126392, 144448, 191296, 221186, 232064, 252784, 288896, 382592, 442372, 464128, 505568, 577792, 765184, 884744, 1011136, 1769488, 2022272, 3538976, 4044544, 7077952, 14155904, 28311808]

約数ペア:

[(1, 28311808), (2, 14155904), (4, 7077952), (7, 4044544), (8, 3538976), (14, 2022272), (16, 1769488), (28, 1011136), (32, 884744), (37, 765184), (49, 577792), (56, 505568), (61, 464128), (64, 442372), (74, 382592), (98, 288896), (112, 252784), (122, 232064), (128, 221186), (148, 191296), (196, 144448), (224, 126392), (244, 116032), (256, 110593), (259, 109312), (296, 95648), (392, 72224), (427, 66304), (448, 63196), (488, 58016), (518, 54656), (592, 47824), (784, 36112), (854, 33152), (896, 31598), (976, 29008), (1036, 27328), (1184, 23912), (1568, 18056), (1708, 16576), (1792, 15799), (1813, 15616), (1952, 14504), (2072, 13664), (2257, 12544), (2368, 11956), (2989, 9472), (3136, 9028), (3416, 8288), (3626, 7808), (3904, 7252), (4144, 6832), (4514, 6272), (4736, 5978)]