78217920

素因数分解:

$2^6\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{823}}^1$

素因数の和:860

約数の個数: 224

約数和(自身を含む): 301386240

約数和(自身を除く): 223168320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 27, 30, 32, 33, 36, 40, 44, 45, 48, 54, 55, 60, 64, 66, 72, 80, 88, 90, 96, 99, 108, 110, 120, 132, 135, 144, 160, 165, 176, 180, 192, 198, 216, 220, 240, 264, 270, 288, 297, 320, 330, 352, 360, 396, 432, 440, 480, 495, 528, 540, 576, 594, 660, 704, 720, 792, 823, 864, 880, 960, 990, 1056, 1080, 1188, 1320, 1440, 1485, 1584, 1646, 1728, 1760, 1980, 2112, 2160, 2376, 2469, 2640, 2880, 2970, 3168, 3292, 3520, 3960, 4115, 4320, 4752, 4938, 5280, 5940, 6336, 6584, 7407, 7920, 8230, 8640, 9053, 9504, 9876, 10560, 11880, 12345, 13168, 14814, 15840, 16460, 18106, 19008, 19752, 22221, 23760, 24690, 26336, 27159, 29628, 31680, 32920, 36212, 37035, 39504, 44442, 45265, 47520, 49380, 52672, 54318, 59256, 65840, 72424, 74070, 79008, 81477, 88884, 90530, 95040, 98760, 108636, 111105, 118512, 131680, 135795, 144848, 148140, 158016, 162954, 177768, 181060, 197520, 217272, 222210, 237024, 244431, 263360, 271590, 289696, 296280, 325908, 355536, 362120, 395040, 407385, 434544, 444420, 474048, 488862, 543180, 579392, 592560, 651816, 711072, 724240, 790080, 814770, 869088, 888840, 977724, 1086360, 1185120, 1222155, 1303632, 1422144, 1448480, 1629540, 1738176, 1777680, 1955448, 2172720, 2370240, 2444310, 2607264, 2896960, 3259080, 3555360, 3910896, 4345440, 4888620, 5214528, 6518160, 7110720, 7821792, 8690880, 9777240, 13036320, 15643584, 19554480, 26072640, 39108960, 78217920]

約数ペア:

[(1, 78217920), (2, 39108960), (3, 26072640), (4, 19554480), (5, 15643584), (6, 13036320), (8, 9777240), (9, 8690880), (10, 7821792), (11, 7110720), (12, 6518160), (15, 5214528), (16, 4888620), (18, 4345440), (20, 3910896), (22, 3555360), (24, 3259080), (27, 2896960), (30, 2607264), (32, 2444310), (33, 2370240), (36, 2172720), (40, 1955448), (44, 1777680), (45, 1738176), (48, 1629540), (54, 1448480), (55, 1422144), (60, 1303632), (64, 1222155), (66, 1185120), (72, 1086360), (80, 977724), (88, 888840), (90, 869088), (96, 814770), (99, 790080), (108, 724240), (110, 711072), (120, 651816), (132, 592560), (135, 579392), (144, 543180), (160, 488862), (165, 474048), (176, 444420), (180, 434544), (192, 407385), (198, 395040), (216, 362120), (220, 355536), (240, 325908), (264, 296280), (270, 289696), (288, 271590), (297, 263360), (320, 244431), (330, 237024), (352, 222210), (360, 217272), (396, 197520), (432, 181060), (440, 177768), (480, 162954), (495, 158016), (528, 148140), (540, 144848), (576, 135795), (594, 131680), (660, 118512), (704, 111105), (720, 108636), (792, 98760), (823, 95040), (864, 90530), (880, 88884), (960, 81477), (990, 79008), (1056, 74070), (1080, 72424), (1188, 65840), (1320, 59256), (1440, 54318), (1485, 52672), (1584, 49380), (1646, 47520), (1728, 45265), (1760, 44442), (1980, 39504), (2112, 37035), (2160, 36212), (2376, 32920), (2469, 31680), (2640, 29628), (2880, 27159), (2970, 26336), (3168, 24690), (3292, 23760), (3520, 22221), (3960, 19752), (4115, 19008), (4320, 18106), (4752, 16460), (4938, 15840), (5280, 14814), (5940, 13168), (6336, 12345), (6584, 11880), (7407, 10560), (7920, 9876), (8230, 9504), (8640, 9053)]