20240640

素因数分解:

$2^8\times 3^2\times 5^1\times 7^1\times {\mathrm{251}}^1$

素因数の和:285

約数の個数: 216

約数和(自身を含む): 80353728

約数和(自身を除く): 60113088

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 128, 140, 144, 160, 168, 180, 192, 210, 224, 240, 251, 252, 256, 280, 288, 315, 320, 336, 360, 384, 420, 448, 480, 502, 504, 560, 576, 630, 640, 672, 720, 753, 768, 840, 896, 960, 1004, 1008, 1120, 1152, 1255, 1260, 1280, 1344, 1440, 1506, 1680, 1757, 1792, 1920, 2008, 2016, 2240, 2259, 2304, 2510, 2520, 2688, 2880, 3012, 3360, 3514, 3765, 3840, 4016, 4032, 4480, 4518, 5020, 5040, 5271, 5376, 5760, 6024, 6720, 7028, 7530, 8032, 8064, 8785, 8960, 9036, 10040, 10080, 10542, 11295, 11520, 12048, 13440, 14056, 15060, 15813, 16064, 16128, 17570, 18072, 20080, 20160, 21084, 22590, 24096, 26355, 26880, 28112, 30120, 31626, 32128, 35140, 36144, 40160, 40320, 42168, 45180, 48192, 52710, 56224, 60240, 63252, 64256, 70280, 72288, 79065, 80320, 80640, 84336, 90360, 96384, 105420, 112448, 120480, 126504, 140560, 144576, 158130, 160640, 168672, 180720, 192768, 210840, 224896, 240960, 253008, 281120, 289152, 316260, 321280, 337344, 361440, 421680, 449792, 481920, 506016, 562240, 578304, 632520, 674688, 722880, 843360, 963840, 1012032, 1124480, 1265040, 1349376, 1445760, 1686720, 2024064, 2248960, 2530080, 2891520, 3373440, 4048128, 5060160, 6746880, 10120320, 20240640]

約数ペア:

[(1, 20240640), (2, 10120320), (3, 6746880), (4, 5060160), (5, 4048128), (6, 3373440), (7, 2891520), (8, 2530080), (9, 2248960), (10, 2024064), (12, 1686720), (14, 1445760), (15, 1349376), (16, 1265040), (18, 1124480), (20, 1012032), (21, 963840), (24, 843360), (28, 722880), (30, 674688), (32, 632520), (35, 578304), (36, 562240), (40, 506016), (42, 481920), (45, 449792), (48, 421680), (56, 361440), (60, 337344), (63, 321280), (64, 316260), (70, 289152), (72, 281120), (80, 253008), (84, 240960), (90, 224896), (96, 210840), (105, 192768), (112, 180720), (120, 168672), (126, 160640), (128, 158130), (140, 144576), (144, 140560), (160, 126504), (168, 120480), (180, 112448), (192, 105420), (210, 96384), (224, 90360), (240, 84336), (251, 80640), (252, 80320), (256, 79065), (280, 72288), (288, 70280), (315, 64256), (320, 63252), (336, 60240), (360, 56224), (384, 52710), (420, 48192), (448, 45180), (480, 42168), (502, 40320), (504, 40160), (560, 36144), (576, 35140), (630, 32128), (640, 31626), (672, 30120), (720, 28112), (753, 26880), (768, 26355), (840, 24096), (896, 22590), (960, 21084), (1004, 20160), (1008, 20080), (1120, 18072), (1152, 17570), (1255, 16128), (1260, 16064), (1280, 15813), (1344, 15060), (1440, 14056), (1506, 13440), (1680, 12048), (1757, 11520), (1792, 11295), (1920, 10542), (2008, 10080), (2016, 10040), (2240, 9036), (2259, 8960), (2304, 8785), (2510, 8064), (2520, 8032), (2688, 7530), (2880, 7028), (3012, 6720), (3360, 6024), (3514, 5760), (3765, 5376), (3840, 5271), (4016, 5040), (4032, 5020), (4480, 4518)]