20521898880

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{7673}}^1$

素因数の和:7901

約数の個数: 256

約数和(自身を含む): 75143808000

約数和(自身を除く): 54621909120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 199, 210, 224, 240, 280, 320, 336, 384, 398, 420, 448, 480, 560, 597, 640, 672, 796, 840, 896, 960, 995, 1120, 1194, 1344, 1393, 1592, 1680, 1920, 1990, 2240, 2388, 2688, 2786, 2985, 3184, 3360, 3980, 4179, 4480, 4776, 5572, 5970, 6368, 6720, 6965, 7673, 7960, 8358, 9552, 11144, 11940, 12736, 13440, 13930, 15346, 15920, 16716, 19104, 20895, 22288, 23019, 23880, 25472, 27860, 30692, 31840, 33432, 38208, 38365, 41790, 44576, 46038, 47760, 53711, 55720, 61384, 63680, 66864, 76416, 76730, 83580, 89152, 92076, 95520, 107422, 111440, 115095, 122768, 127360, 133728, 153460, 161133, 167160, 178304, 184152, 191040, 214844, 222880, 230190, 245536, 267456, 268555, 306920, 322266, 334320, 368304, 382080, 429688, 445760, 460380, 491072, 534912, 537110, 613840, 644532, 668640, 736608, 805665, 859376, 891520, 920760, 982144, 1074220, 1227680, 1289064, 1337280, 1473216, 1526927, 1611330, 1718752, 1841520, 2148440, 2455360, 2578128, 2674560, 2946432, 3053854, 3222660, 3437504, 3683040, 4296880, 4580781, 4910720, 5156256, 6107708, 6445320, 6875008, 7366080, 7634635, 8593760, 9161562, 10312512, 10688489, 12215416, 12890640, 14732160, 15269270, 17187520, 18323124, 20625024, 21376978, 22903905, 24430832, 25781280, 30538540, 32065467, 34375040, 36646248, 42753956, 45807810, 48861664, 51562560, 53442445, 61077080, 64130934, 73292496, 85507912, 91615620, 97723328, 103125120, 106884890, 122154160, 128261868, 146584992, 160327335, 171015824, 183231240, 195446656, 213769780, 244308320, 256523736, 293169984, 320654670, 342031648, 366462480, 427539560, 488616640, 513047472, 586339968, 641309340, 684063296, 732924960, 855079120, 977233280, 1026094944, 1282618680, 1368126592, 1465849920, 1710158240, 2052189888, 2565237360, 2931699840, 3420316480, 4104379776, 5130474720, 6840632960, 10260949440, 20521898880]

約数ペア:

[(1, 20521898880), (2, 10260949440), (3, 6840632960), (4, 5130474720), (5, 4104379776), (6, 3420316480), (7, 2931699840), (8, 2565237360), (10, 2052189888), (12, 1710158240), (14, 1465849920), (15, 1368126592), (16, 1282618680), (20, 1026094944), (21, 977233280), (24, 855079120), (28, 732924960), (30, 684063296), (32, 641309340), (35, 586339968), (40, 513047472), (42, 488616640), (48, 427539560), (56, 366462480), (60, 342031648), (64, 320654670), (70, 293169984), (80, 256523736), (84, 244308320), (96, 213769780), (105, 195446656), (112, 183231240), (120, 171015824), (128, 160327335), (140, 146584992), (160, 128261868), (168, 122154160), (192, 106884890), (199, 103125120), (210, 97723328), (224, 91615620), (240, 85507912), (280, 73292496), (320, 64130934), (336, 61077080), (384, 53442445), (398, 51562560), (420, 48861664), (448, 45807810), (480, 42753956), (560, 36646248), (597, 34375040), (640, 32065467), (672, 30538540), (796, 25781280), (840, 24430832), (896, 22903905), (960, 21376978), (995, 20625024), (1120, 18323124), (1194, 17187520), (1344, 15269270), (1393, 14732160), (1592, 12890640), (1680, 12215416), (1920, 10688489), (1990, 10312512), (2240, 9161562), (2388, 8593760), (2688, 7634635), (2786, 7366080), (2985, 6875008), (3184, 6445320), (3360, 6107708), (3980, 5156256), (4179, 4910720), (4480, 4580781), (4776, 4296880), (5572, 3683040), (5970, 3437504), (6368, 3222660), (6720, 3053854), (6965, 2946432), (7673, 2674560), (7960, 2578128), (8358, 2455360), (9552, 2148440), (11144, 1841520), (11940, 1718752), (12736, 1611330), (13440, 1526927), (13930, 1473216), (15346, 1337280), (15920, 1289064), (16716, 1227680), (19104, 1074220), (20895, 982144), (22288, 920760), (23019, 891520), (23880, 859376), (25472, 805665), (27860, 736608), (30692, 668640), (31840, 644532), (33432, 613840), (38208, 537110), (38365, 534912), (41790, 491072), (44576, 460380), (46038, 445760), (47760, 429688), (53711, 382080), (55720, 368304), (61384, 334320), (63680, 322266), (66864, 306920), (76416, 268555), (76730, 267456), (83580, 245536), (89152, 230190), (92076, 222880), (95520, 214844), (107422, 191040), (111440, 184152), (115095, 178304), (122768, 167160), (127360, 161133), (133728, 153460)]