208749321728

素因数分解:

$2^9\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{120661}}^1$

素因数の和:120819

約数の個数: 80

約数和(自身を含む): 434499035520

約数和(自身を除く): 225749713792

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 109, 124, 128, 218, 248, 256, 436, 496, 512, 872, 992, 1744, 1984, 3379, 3488, 3968, 6758, 6976, 7936, 13516, 13952, 15872, 27032, 27904, 54064, 55808, 108128, 120661, 216256, 241322, 432512, 482644, 865024, 965288, 1730048, 1930576, 3740491, 3861152, 7480982, 7722304, 13152049, 14961964, 15444608, 26304098, 29923928, 30889216, 52608196, 59847856, 61778432, 105216392, 119695712, 210432784, 239391424, 407713519, 420865568, 478782848, 815427038, 841731136, 957565696, 1630854076, 1683462272, 1915131392, 3261708152, 3366924544, 6523416304, 6733849088, 13046832608, 26093665216, 52187330432, 104374660864, 208749321728]

約数ペア:

[(1, 208749321728), (2, 104374660864), (4, 52187330432), (8, 26093665216), (16, 13046832608), (31, 6733849088), (32, 6523416304), (62, 3366924544), (64, 3261708152), (109, 1915131392), (124, 1683462272), (128, 1630854076), (218, 957565696), (248, 841731136), (256, 815427038), (436, 478782848), (496, 420865568), (512, 407713519), (872, 239391424), (992, 210432784), (1744, 119695712), (1984, 105216392), (3379, 61778432), (3488, 59847856), (3968, 52608196), (6758, 30889216), (6976, 29923928), (7936, 26304098), (13516, 15444608), (13952, 14961964), (15872, 13152049), (27032, 7722304), (27904, 7480982), (54064, 3861152), (55808, 3740491), (108128, 1930576), (120661, 1730048), (216256, 965288), (241322, 865024), (432512, 482644)]