21324960

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{251}}^1$

素因数の和:331

約数の個数: 144

約数和(自身を含む): 74299680

約数和(自身を除く): 52974720

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, 251, 288, 295, 354, 360, 472, 480, 502, 531, 590, 708, 720, 753, 885, 944, 1004, 1062, 1180, 1255, 1416, 1440, 1506, 1770, 1888, 2008, 2124, 2259, 2360, 2510, 2655, 2832, 3012, 3540, 3765, 4016, 4248, 4518, 4720, 5020, 5310, 5664, 6024, 7080, 7530, 8032, 8496, 9036, 9440, 10040, 10620, 11295, 12048, 14160, 14809, 15060, 16992, 18072, 20080, 21240, 22590, 24096, 28320, 29618, 30120, 36144, 40160, 42480, 44427, 45180, 59236, 60240, 72288, 74045, 84960, 88854, 90360, 118472, 120480, 133281, 148090, 177708, 180720, 222135, 236944, 266562, 296180, 355416, 361440, 444270, 473888, 533124, 592360, 666405, 710832, 888540, 1066248, 1184720, 1332810, 1421664, 1777080, 2132496, 2369440, 2665620, 3554160, 4264992, 5331240, 7108320, 10662480, 21324960]

約数ペア:

[(1, 21324960), (2, 10662480), (3, 7108320), (4, 5331240), (5, 4264992), (6, 3554160), (8, 2665620), (9, 2369440), (10, 2132496), (12, 1777080), (15, 1421664), (16, 1332810), (18, 1184720), (20, 1066248), (24, 888540), (30, 710832), (32, 666405), (36, 592360), (40, 533124), (45, 473888), (48, 444270), (59, 361440), (60, 355416), (72, 296180), (80, 266562), (90, 236944), (96, 222135), (118, 180720), (120, 177708), (144, 148090), (160, 133281), (177, 120480), (180, 118472), (236, 90360), (240, 88854), (251, 84960), (288, 74045), (295, 72288), (354, 60240), (360, 59236), (472, 45180), (480, 44427), (502, 42480), (531, 40160), (590, 36144), (708, 30120), (720, 29618), (753, 28320), (885, 24096), (944, 22590), (1004, 21240), (1062, 20080), (1180, 18072), (1255, 16992), (1416, 15060), (1440, 14809), (1506, 14160), (1770, 12048), (1888, 11295), (2008, 10620), (2124, 10040), (2259, 9440), (2360, 9036), (2510, 8496), (2655, 8032), (2832, 7530), (3012, 7080), (3540, 6024), (3765, 5664), (4016, 5310), (4248, 5020), (4518, 4720)]