101821720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2543}}^1$

素因数の和:2585

約数の個数: 128

約数和(自身を含む): 307722240

約数和(自身を除く): 205900520

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 20, 22, 26, 28, 35, 40, 44, 52, 55, 56, 65, 70, 77, 88, 91, 104, 110, 130, 140, 143, 154, 182, 220, 260, 280, 286, 308, 364, 385, 440, 455, 520, 572, 616, 715, 728, 770, 910, 1001, 1144, 1430, 1540, 1820, 2002, 2543, 2860, 3080, 3640, 4004, 5005, 5086, 5720, 8008, 10010, 10172, 12715, 17801, 20020, 20344, 25430, 27973, 33059, 35602, 40040, 50860, 55946, 66118, 71204, 89005, 101720, 111892, 132236, 139865, 142408, 165295, 178010, 195811, 223784, 231413, 264472, 279730, 330590, 356020, 363649, 391622, 462826, 559460, 661180, 712040, 727298, 783244, 925652, 979055, 1118920, 1157065, 1322360, 1454596, 1566488, 1818245, 1851304, 1958110, 2314130, 2545543, 2909192, 3636490, 3916220, 4628260, 5091086, 7272980, 7832440, 9256520, 10182172, 12727715, 14545960, 20364344, 25455430, 50910860, 101821720]

約数ペア:

[(1, 101821720), (2, 50910860), (4, 25455430), (5, 20364344), (7, 14545960), (8, 12727715), (10, 10182172), (11, 9256520), (13, 7832440), (14, 7272980), (20, 5091086), (22, 4628260), (26, 3916220), (28, 3636490), (35, 2909192), (40, 2545543), (44, 2314130), (52, 1958110), (55, 1851304), (56, 1818245), (65, 1566488), (70, 1454596), (77, 1322360), (88, 1157065), (91, 1118920), (104, 979055), (110, 925652), (130, 783244), (140, 727298), (143, 712040), (154, 661180), (182, 559460), (220, 462826), (260, 391622), (280, 363649), (286, 356020), (308, 330590), (364, 279730), (385, 264472), (440, 231413), (455, 223784), (520, 195811), (572, 178010), (616, 165295), (715, 142408), (728, 139865), (770, 132236), (910, 111892), (1001, 101720), (1144, 89005), (1430, 71204), (1540, 66118), (1820, 55946), (2002, 50860), (2543, 40040), (2860, 35602), (3080, 33059), (3640, 27973), (4004, 25430), (5005, 20344), (5086, 20020), (5720, 17801), (8008, 12715), (10010, 10172)]