257015366912

素因数分解:

$2^8\times {\mathrm{137}}^1\times {\mathrm{479}}^1\times {\mathrm{15299}}^1$

素因数の和:15931

約数の個数: 72

約数和(自身を含む): 517884192000

約数和(自身を除く): 260868825088

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 137, 256, 274, 479, 548, 958, 1096, 1916, 2192, 3832, 4384, 7664, 8768, 15299, 15328, 17536, 30598, 30656, 35072, 61196, 61312, 65623, 122392, 122624, 131246, 244784, 262492, 489568, 524984, 979136, 1049968, 1958272, 2095963, 2099936, 3916544, 4191926, 4199872, 7328221, 8383852, 8399744, 14656442, 16767704, 16799488, 29312884, 33535408, 58625768, 67070816, 117251536, 134141632, 234503072, 268283264, 469006144, 536566528, 938012288, 1003966277, 1876024576, 2007932554, 4015865108, 8031730216, 16063460432, 32126920864, 64253841728, 128507683456, 257015366912]

約数ペア:

[(1, 257015366912), (2, 128507683456), (4, 64253841728), (8, 32126920864), (16, 16063460432), (32, 8031730216), (64, 4015865108), (128, 2007932554), (137, 1876024576), (256, 1003966277), (274, 938012288), (479, 536566528), (548, 469006144), (958, 268283264), (1096, 234503072), (1916, 134141632), (2192, 117251536), (3832, 67070816), (4384, 58625768), (7664, 33535408), (8768, 29312884), (15299, 16799488), (15328, 16767704), (17536, 14656442), (30598, 8399744), (30656, 8383852), (35072, 7328221), (61196, 4199872), (61312, 4191926), (65623, 3916544), (122392, 2099936), (122624, 2095963), (131246, 1958272), (244784, 1049968), (262492, 979136), (489568, 524984)]