21040428960

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{247651}}^1$

素因数の和:247731

約数の個数: 144

約数和(自身を含む): 73017715680

約数和(自身を除く): 51977286720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 59, 60, 72, 80, 90, 96, 118, 120, 144, 160, 177, 180, 236, 240, 288, 295, 354, 360, 472, 480, 531, 590, 708, 720, 885, 944, 1062, 1180, 1416, 1440, 1770, 1888, 2124, 2360, 2655, 2832, 3540, 4248, 4720, 5310, 5664, 7080, 8496, 9440, 10620, 14160, 16992, 21240, 28320, 42480, 84960, 247651, 495302, 742953, 990604, 1238255, 1485906, 1981208, 2228859, 2476510, 2971812, 3714765, 3962416, 4457718, 4953020, 5943624, 7429530, 7924832, 8915436, 9906040, 11144295, 11887248, 14611409, 14859060, 17830872, 19812080, 22288590, 23774496, 29222818, 29718120, 35661744, 39624160, 43834227, 44577180, 58445636, 59436240, 71323488, 73057045, 87668454, 89154360, 116891272, 118872480, 131502681, 146114090, 175336908, 178308720, 219171135, 233782544, 263005362, 292228180, 350673816, 356617440, 438342270, 467565088, 526010724, 584456360, 657513405, 701347632, 876684540, 1052021448, 1168912720, 1315026810, 1402695264, 1753369080, 2104042896, 2337825440, 2630053620, 3506738160, 4208085792, 5260107240, 7013476320, 10520214480, 21040428960]

約数ペア:

[(1, 21040428960), (2, 10520214480), (3, 7013476320), (4, 5260107240), (5, 4208085792), (6, 3506738160), (8, 2630053620), (9, 2337825440), (10, 2104042896), (12, 1753369080), (15, 1402695264), (16, 1315026810), (18, 1168912720), (20, 1052021448), (24, 876684540), (30, 701347632), (32, 657513405), (36, 584456360), (40, 526010724), (45, 467565088), (48, 438342270), (59, 356617440), (60, 350673816), (72, 292228180), (80, 263005362), (90, 233782544), (96, 219171135), (118, 178308720), (120, 175336908), (144, 146114090), (160, 131502681), (177, 118872480), (180, 116891272), (236, 89154360), (240, 87668454), (288, 73057045), (295, 71323488), (354, 59436240), (360, 58445636), (472, 44577180), (480, 43834227), (531, 39624160), (590, 35661744), (708, 29718120), (720, 29222818), (885, 23774496), (944, 22288590), (1062, 19812080), (1180, 17830872), (1416, 14859060), (1440, 14611409), (1770, 11887248), (1888, 11144295), (2124, 9906040), (2360, 8915436), (2655, 7924832), (2832, 7429530), (3540, 5943624), (4248, 4953020), (4720, 4457718), (5310, 3962416), (5664, 3714765), (7080, 2971812), (8496, 2476510), (9440, 2228859), (10620, 1981208), (14160, 1485906), (16992, 1238255), (21240, 990604), (28320, 742953), (42480, 495302), (84960, 247651)]