164220160

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:244

約数の個数: 144

約数和(自身を含む): 432673920

約数和(自身を除く): 268453760

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 71, 80, 104, 128, 130, 139, 142, 160, 208, 256, 260, 278, 284, 320, 355, 416, 520, 556, 568, 640, 695, 710, 832, 923, 1040, 1112, 1136, 1280, 1390, 1420, 1664, 1807, 1846, 2080, 2224, 2272, 2780, 2840, 3328, 3614, 3692, 4160, 4448, 4544, 4615, 5560, 5680, 7228, 7384, 8320, 8896, 9035, 9088, 9230, 9869, 11120, 11360, 14456, 14768, 16640, 17792, 18070, 18176, 18460, 19738, 22240, 22720, 28912, 29536, 35584, 36140, 36920, 39476, 44480, 45440, 49345, 57824, 59072, 72280, 73840, 78952, 88960, 90880, 98690, 115648, 118144, 128297, 144560, 147680, 157904, 177920, 197380, 231296, 236288, 256594, 289120, 295360, 315808, 394760, 462592, 513188, 578240, 590720, 631616, 641485, 789520, 1026376, 1156480, 1181440, 1263232, 1282970, 1579040, 2052752, 2312960, 2526464, 2565940, 3158080, 4105504, 5131880, 6316160, 8211008, 10263760, 12632320, 16422016, 20527520, 32844032, 41055040, 82110080, 164220160]

約数ペア:

[(1, 164220160), (2, 82110080), (4, 41055040), (5, 32844032), (8, 20527520), (10, 16422016), (13, 12632320), (16, 10263760), (20, 8211008), (26, 6316160), (32, 5131880), (40, 4105504), (52, 3158080), (64, 2565940), (65, 2526464), (71, 2312960), (80, 2052752), (104, 1579040), (128, 1282970), (130, 1263232), (139, 1181440), (142, 1156480), (160, 1026376), (208, 789520), (256, 641485), (260, 631616), (278, 590720), (284, 578240), (320, 513188), (355, 462592), (416, 394760), (520, 315808), (556, 295360), (568, 289120), (640, 256594), (695, 236288), (710, 231296), (832, 197380), (923, 177920), (1040, 157904), (1112, 147680), (1136, 144560), (1280, 128297), (1390, 118144), (1420, 115648), (1664, 98690), (1807, 90880), (1846, 88960), (2080, 78952), (2224, 73840), (2272, 72280), (2780, 59072), (2840, 57824), (3328, 49345), (3614, 45440), (3692, 44480), (4160, 39476), (4448, 36920), (4544, 36140), (4615, 35584), (5560, 29536), (5680, 28912), (7228, 22720), (7384, 22240), (8320, 19738), (8896, 18460), (9035, 18176), (9088, 18070), (9230, 17792), (9869, 16640), (11120, 14768), (11360, 14456)]