28931465728

素因数分解:

$2^9\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{165709}}^1$

素因数の和:165769

約数の個数: 80

約数和(自身を含む): 65096190720

約数和(自身を除く): 36164724992

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 32, 44, 62, 64, 88, 124, 128, 176, 248, 256, 341, 352, 496, 512, 682, 704, 992, 1364, 1408, 1984, 2728, 2816, 3968, 5456, 5632, 7936, 10912, 15872, 21824, 43648, 87296, 165709, 174592, 331418, 662836, 1325672, 1822799, 2651344, 3645598, 5136979, 5302688, 7291196, 10273958, 10605376, 14582392, 20547916, 21210752, 29164784, 41095832, 42421504, 56506769, 58329568, 82191664, 84843008, 113013538, 116659136, 164383328, 226027076, 233318272, 328766656, 452054152, 466636544, 657533312, 904108304, 933273088, 1315066624, 1808216608, 2630133248, 3616433216, 7232866432, 14465732864, 28931465728]

約数ペア:

[(1, 28931465728), (2, 14465732864), (4, 7232866432), (8, 3616433216), (11, 2630133248), (16, 1808216608), (22, 1315066624), (31, 933273088), (32, 904108304), (44, 657533312), (62, 466636544), (64, 452054152), (88, 328766656), (124, 233318272), (128, 226027076), (176, 164383328), (248, 116659136), (256, 113013538), (341, 84843008), (352, 82191664), (496, 58329568), (512, 56506769), (682, 42421504), (704, 41095832), (992, 29164784), (1364, 21210752), (1408, 20547916), (1984, 14582392), (2728, 10605376), (2816, 10273958), (3968, 7291196), (5456, 5302688), (5632, 5136979), (7936, 3645598), (10912, 2651344), (15872, 1822799), (21824, 1325672), (43648, 662836), (87296, 331418), (165709, 174592)]