128749696

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{457}}^1$

素因数の和:573

約数の個数: 64

約数和(自身を含む): 269084160

約数和(自身を除く): 140334464

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 71, 124, 128, 142, 248, 284, 457, 496, 568, 914, 992, 1136, 1828, 1984, 2201, 2272, 3656, 3968, 4402, 4544, 7312, 8804, 9088, 14167, 14624, 17608, 28334, 29248, 32447, 35216, 56668, 58496, 64894, 70432, 113336, 129788, 140864, 226672, 259576, 281728, 453344, 519152, 906688, 1005857, 1038304, 1813376, 2011714, 2076608, 4023428, 4153216, 8046856, 16093712, 32187424, 64374848, 128749696]

約数ペア:

[(1, 128749696), (2, 64374848), (4, 32187424), (8, 16093712), (16, 8046856), (31, 4153216), (32, 4023428), (62, 2076608), (64, 2011714), (71, 1813376), (124, 1038304), (128, 1005857), (142, 906688), (248, 519152), (284, 453344), (457, 281728), (496, 259576), (568, 226672), (914, 140864), (992, 129788), (1136, 113336), (1828, 70432), (1984, 64894), (2201, 58496), (2272, 56668), (3656, 35216), (3968, 32447), (4402, 29248), (4544, 28334), (7312, 17608), (8804, 14624), (9088, 14167)]