19904807520

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{17431}}^1$

素因数の和:17526

約数の個数: 288

約数和(自身を含む): 74353616064

約数和(自身を除く): 54448808544

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 32, 36, 39, 40, 45, 48, 52, 60, 61, 65, 72, 78, 80, 90, 96, 104, 117, 120, 122, 130, 144, 156, 160, 180, 183, 195, 208, 234, 240, 244, 260, 288, 305, 312, 360, 366, 390, 416, 468, 480, 488, 520, 549, 585, 610, 624, 720, 732, 780, 793, 915, 936, 976, 1040, 1098, 1170, 1220, 1248, 1440, 1464, 1560, 1586, 1830, 1872, 1952, 2080, 2196, 2340, 2379, 2440, 2745, 2928, 3120, 3172, 3660, 3744, 3965, 4392, 4680, 4758, 4880, 5490, 5856, 6240, 6344, 7137, 7320, 7930, 8784, 9360, 9516, 9760, 10980, 11895, 12688, 14274, 14640, 15860, 17431, 17568, 18720, 19032, 21960, 23790, 25376, 28548, 29280, 31720, 34862, 35685, 38064, 43920, 47580, 52293, 57096, 63440, 69724, 71370, 76128, 87155, 87840, 95160, 104586, 114192, 126880, 139448, 142740, 156879, 174310, 190320, 209172, 226603, 228384, 261465, 278896, 285480, 313758, 348620, 380640, 418344, 453206, 522930, 557792, 570960, 627516, 679809, 697240, 784395, 836688, 906412, 1045860, 1063291, 1133015, 1141920, 1255032, 1359618, 1394480, 1568790, 1673376, 1812824, 2039427, 2091720, 2126582, 2266030, 2510064, 2719236, 2788960, 3137580, 3189873, 3399045, 3625648, 4078854, 4183440, 4253164, 4532060, 5020128, 5316455, 5438472, 6275160, 6379746, 6798090, 7251296, 8157708, 8366880, 8506328, 9064120, 9569619, 10197135, 10632910, 10876944, 12550320, 12759492, 13596180, 13822783, 15949365, 16315416, 17012656, 18128240, 19139238, 20394270, 21265820, 21753888, 25100640, 25518984, 27192360, 27645566, 31898730, 32630832, 34025312, 36256480, 38278476, 40788540, 41468349, 42531640, 47848095, 51037968, 54384720, 55291132, 63797460, 65261664, 69113915, 76556952, 81577080, 82936698, 85063280, 95696190, 102075936, 108769440, 110582264, 124405047, 127594920, 138227830, 153113904, 163154160, 165873396, 170126560, 191392380, 207341745, 221164528, 248810094, 255189840, 276455660, 306227808, 326308320, 331746792, 382784760, 414683490, 442329056, 497620188, 510379680, 552911320, 622025235, 663493584, 765569520, 829366980, 995240376, 1105822640, 1244050470, 1326987168, 1531139040, 1658733960, 1990480752, 2211645280, 2488100940, 3317467920, 3980961504, 4976201880, 6634935840, 9952403760, 19904807520]

約数ペア:

[(1, 19904807520), (2, 9952403760), (3, 6634935840), (4, 4976201880), (5, 3980961504), (6, 3317467920), (8, 2488100940), (9, 2211645280), (10, 1990480752), (12, 1658733960), (13, 1531139040), (15, 1326987168), (16, 1244050470), (18, 1105822640), (20, 995240376), (24, 829366980), (26, 765569520), (30, 663493584), (32, 622025235), (36, 552911320), (39, 510379680), (40, 497620188), (45, 442329056), (48, 414683490), (52, 382784760), (60, 331746792), (61, 326308320), (65, 306227808), (72, 276455660), (78, 255189840), (80, 248810094), (90, 221164528), (96, 207341745), (104, 191392380), (117, 170126560), (120, 165873396), (122, 163154160), (130, 153113904), (144, 138227830), (156, 127594920), (160, 124405047), (180, 110582264), (183, 108769440), (195, 102075936), (208, 95696190), (234, 85063280), (240, 82936698), (244, 81577080), (260, 76556952), (288, 69113915), (305, 65261664), (312, 63797460), (360, 55291132), (366, 54384720), (390, 51037968), (416, 47848095), (468, 42531640), (480, 41468349), (488, 40788540), (520, 38278476), (549, 36256480), (585, 34025312), (610, 32630832), (624, 31898730), (720, 27645566), (732, 27192360), (780, 25518984), (793, 25100640), (915, 21753888), (936, 21265820), (976, 20394270), (1040, 19139238), (1098, 18128240), (1170, 17012656), (1220, 16315416), (1248, 15949365), (1440, 13822783), (1464, 13596180), (1560, 12759492), (1586, 12550320), (1830, 10876944), (1872, 10632910), (1952, 10197135), (2080, 9569619), (2196, 9064120), (2340, 8506328), (2379, 8366880), (2440, 8157708), (2745, 7251296), (2928, 6798090), (3120, 6379746), (3172, 6275160), (3660, 5438472), (3744, 5316455), (3965, 5020128), (4392, 4532060), (4680, 4253164), (4758, 4183440), (4880, 4078854), (5490, 3625648), (5856, 3399045), (6240, 3189873), (6344, 3137580), (7137, 2788960), (7320, 2719236), (7930, 2510064), (8784, 2266030), (9360, 2126582), (9516, 2091720), (9760, 2039427), (10980, 1812824), (11895, 1673376), (12688, 1568790), (14274, 1394480), (14640, 1359618), (15860, 1255032), (17431, 1141920), (17568, 1133015), (18720, 1063291), (19032, 1045860), (21960, 906412), (23790, 836688), (25376, 784395), (28548, 697240), (29280, 679809), (31720, 627516), (34862, 570960), (35685, 557792), (38064, 522930), (43920, 453206), (47580, 418344), (52293, 380640), (57096, 348620), (63440, 313758), (69724, 285480), (71370, 278896), (76128, 261465), (87155, 228384), (87840, 226603), (95160, 209172), (104586, 190320), (114192, 174310), (126880, 156879), (139448, 142740)]