1261758208

素因数分解:

$2^8\times {\mathrm{127}}^1\times {\mathrm{197}}^2$

素因数の和:537

約数の個数: 54

約数和(自身を含む): 2551369856

約数和(自身を除く): 1289611648

約数列:

[1, 2, 4, 8, 16, 32, 64, 127, 128, 197, 254, 256, 394, 508, 788, 1016, 1576, 2032, 3152, 4064, 6304, 8128, 12608, 16256, 25019, 25216, 32512, 38809, 50038, 50432, 77618, 100076, 155236, 200152, 310472, 400304, 620944, 800608, 1241888, 1601216, 2483776, 3202432, 4928743, 4967552, 6404864, 9857486, 9935104, 19714972, 39429944, 78859888, 157719776, 315439552, 630879104, 1261758208]

約数ペア:

[(1, 1261758208), (2, 630879104), (4, 315439552), (8, 157719776), (16, 78859888), (32, 39429944), (64, 19714972), (127, 9935104), (128, 9857486), (197, 6404864), (254, 4967552), (256, 4928743), (394, 3202432), (508, 2483776), (788, 1601216), (1016, 1241888), (1576, 800608), (2032, 620944), (3152, 400304), (4064, 310472), (6304, 200152), (8128, 155236), (12608, 100076), (16256, 77618), (25019, 50432), (25216, 50038), (32512, 38809)]