687440128

素因数分解:

$2^8\times {\mathrm{29}}^2\times {\mathrm{31}}^1\times {\mathrm{103}}^1$

素因数の和:208

約数の個数: 108

約数和(自身を含む): 1481229568

約数和(自身を除く): 793789440

約数列:

[1, 2, 4, 8, 16, 29, 31, 32, 58, 62, 64, 103, 116, 124, 128, 206, 232, 248, 256, 412, 464, 496, 824, 841, 899, 928, 992, 1648, 1682, 1798, 1856, 1984, 2987, 3193, 3296, 3364, 3596, 3712, 3968, 5974, 6386, 6592, 6728, 7192, 7424, 7936, 11948, 12772, 13184, 13456, 14384, 23896, 25544, 26071, 26368, 26912, 28768, 47792, 51088, 52142, 53824, 57536, 86623, 92597, 95584, 102176, 104284, 107648, 115072, 173246, 185194, 191168, 204352, 208568, 215296, 230144, 346492, 370388, 382336, 408704, 417136, 692984, 740776, 764672, 817408, 834272, 1385968, 1481552, 1668544, 2685313, 2771936, 2963104, 3337088, 5370626, 5543872, 5926208, 6674176, 10741252, 11087744, 11852416, 21482504, 22175488, 23704832, 42965008, 85930016, 171860032, 343720064, 687440128]

約数ペア:

[(1, 687440128), (2, 343720064), (4, 171860032), (8, 85930016), (16, 42965008), (29, 23704832), (31, 22175488), (32, 21482504), (58, 11852416), (62, 11087744), (64, 10741252), (103, 6674176), (116, 5926208), (124, 5543872), (128, 5370626), (206, 3337088), (232, 2963104), (248, 2771936), (256, 2685313), (412, 1668544), (464, 1481552), (496, 1385968), (824, 834272), (841, 817408), (899, 764672), (928, 740776), (992, 692984), (1648, 417136), (1682, 408704), (1798, 382336), (1856, 370388), (1984, 346492), (2987, 230144), (3193, 215296), (3296, 208568), (3364, 204352), (3596, 191168), (3712, 185194), (3968, 173246), (5974, 115072), (6386, 107648), (6592, 104284), (6728, 102176), (7192, 95584), (7424, 92597), (7936, 86623), (11948, 57536), (12772, 53824), (13184, 52142), (13456, 51088), (14384, 47792), (23896, 28768), (25544, 26912), (26071, 26368)]