18964512

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{409}}^1$

素因数の和:455

約数の個数: 144

約数和(自身を含む): 64471680

約数和(自身を除く): 45507168

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 23, 24, 28, 32, 36, 42, 46, 48, 56, 63, 69, 72, 84, 92, 96, 112, 126, 138, 144, 161, 168, 184, 207, 224, 252, 276, 288, 322, 336, 368, 409, 414, 483, 504, 552, 644, 672, 736, 818, 828, 966, 1008, 1104, 1227, 1288, 1449, 1636, 1656, 1932, 2016, 2208, 2454, 2576, 2863, 2898, 3272, 3312, 3681, 3864, 4908, 5152, 5726, 5796, 6544, 6624, 7362, 7728, 8589, 9407, 9816, 11452, 11592, 13088, 14724, 15456, 17178, 18814, 19632, 22904, 23184, 25767, 28221, 29448, 34356, 37628, 39264, 45808, 46368, 51534, 56442, 58896, 65849, 68712, 75256, 84663, 91616, 103068, 112884, 117792, 131698, 137424, 150512, 169326, 197547, 206136, 225768, 263396, 274848, 301024, 338652, 395094, 412272, 451536, 526792, 592641, 677304, 790188, 824544, 903072, 1053584, 1185282, 1354608, 1580376, 2107168, 2370564, 2709216, 3160752, 4741128, 6321504, 9482256, 18964512]

約数ペア:

[(1, 18964512), (2, 9482256), (3, 6321504), (4, 4741128), (6, 3160752), (7, 2709216), (8, 2370564), (9, 2107168), (12, 1580376), (14, 1354608), (16, 1185282), (18, 1053584), (21, 903072), (23, 824544), (24, 790188), (28, 677304), (32, 592641), (36, 526792), (42, 451536), (46, 412272), (48, 395094), (56, 338652), (63, 301024), (69, 274848), (72, 263396), (84, 225768), (92, 206136), (96, 197547), (112, 169326), (126, 150512), (138, 137424), (144, 131698), (161, 117792), (168, 112884), (184, 103068), (207, 91616), (224, 84663), (252, 75256), (276, 68712), (288, 65849), (322, 58896), (336, 56442), (368, 51534), (409, 46368), (414, 45808), (483, 39264), (504, 37628), (552, 34356), (644, 29448), (672, 28221), (736, 25767), (818, 23184), (828, 22904), (966, 19632), (1008, 18814), (1104, 17178), (1227, 15456), (1288, 14724), (1449, 13088), (1636, 11592), (1656, 11452), (1932, 9816), (2016, 9407), (2208, 8589), (2454, 7728), (2576, 7362), (2863, 6624), (2898, 6544), (3272, 5796), (3312, 5726), (3681, 5152), (3864, 4908)]