20573280

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1$

素因数の和:198

約数の個数: 288

約数和(自身を含む): 86958144

約数和(自身を除く): 66384864

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 18, 20, 21, 24, 26, 28, 30, 32, 35, 36, 39, 40, 42, 45, 48, 52, 56, 60, 63, 65, 70, 72, 78, 80, 84, 90, 91, 96, 104, 105, 112, 117, 120, 126, 130, 140, 144, 156, 157, 160, 168, 180, 182, 195, 208, 210, 224, 234, 240, 252, 260, 273, 280, 288, 312, 314, 315, 336, 360, 364, 390, 416, 420, 455, 468, 471, 480, 504, 520, 546, 560, 585, 624, 628, 630, 672, 720, 728, 780, 785, 819, 840, 910, 936, 942, 1008, 1040, 1092, 1099, 1120, 1170, 1248, 1256, 1260, 1365, 1413, 1440, 1456, 1560, 1570, 1638, 1680, 1820, 1872, 1884, 2016, 2041, 2080, 2184, 2198, 2340, 2355, 2512, 2520, 2730, 2826, 2912, 3120, 3140, 3276, 3297, 3360, 3640, 3744, 3768, 4082, 4095, 4368, 4396, 4680, 4710, 5024, 5040, 5460, 5495, 5652, 6123, 6240, 6280, 6552, 6594, 7065, 7280, 7536, 8164, 8190, 8736, 8792, 9360, 9420, 9891, 10080, 10205, 10920, 10990, 11304, 12246, 12560, 13104, 13188, 14130, 14287, 14560, 15072, 16328, 16380, 16485, 17584, 18369, 18720, 18840, 19782, 20410, 21840, 21980, 22608, 24492, 25120, 26208, 26376, 28260, 28574, 30615, 32656, 32760, 32970, 35168, 36738, 37680, 39564, 40820, 42861, 43680, 43960, 45216, 48984, 49455, 52752, 56520, 57148, 61230, 65312, 65520, 65940, 71435, 73476, 75360, 79128, 81640, 85722, 87920, 91845, 97968, 98910, 105504, 113040, 114296, 122460, 128583, 131040, 131880, 142870, 146952, 158256, 163280, 171444, 175840, 183690, 195936, 197820, 214305, 226080, 228592, 244920, 257166, 263760, 285740, 293904, 316512, 326560, 342888, 367380, 395640, 428610, 457184, 489840, 514332, 527520, 571480, 587808, 642915, 685776, 734760, 791280, 857220, 979680, 1028664, 1142960, 1285830, 1371552, 1469520, 1582560, 1714440, 2057328, 2285920, 2571660, 2939040, 3428880, 4114656, 5143320, 6857760, 10286640, 20573280]

約数ペア:

[(1, 20573280), (2, 10286640), (3, 6857760), (4, 5143320), (5, 4114656), (6, 3428880), (7, 2939040), (8, 2571660), (9, 2285920), (10, 2057328), (12, 1714440), (13, 1582560), (14, 1469520), (15, 1371552), (16, 1285830), (18, 1142960), (20, 1028664), (21, 979680), (24, 857220), (26, 791280), (28, 734760), (30, 685776), (32, 642915), (35, 587808), (36, 571480), (39, 527520), (40, 514332), (42, 489840), (45, 457184), (48, 428610), (52, 395640), (56, 367380), (60, 342888), (63, 326560), (65, 316512), (70, 293904), (72, 285740), (78, 263760), (80, 257166), (84, 244920), (90, 228592), (91, 226080), (96, 214305), (104, 197820), (105, 195936), (112, 183690), (117, 175840), (120, 171444), (126, 163280), (130, 158256), (140, 146952), (144, 142870), (156, 131880), (157, 131040), (160, 128583), (168, 122460), (180, 114296), (182, 113040), (195, 105504), (208, 98910), (210, 97968), (224, 91845), (234, 87920), (240, 85722), (252, 81640), (260, 79128), (273, 75360), (280, 73476), (288, 71435), (312, 65940), (314, 65520), (315, 65312), (336, 61230), (360, 57148), (364, 56520), (390, 52752), (416, 49455), (420, 48984), (455, 45216), (468, 43960), (471, 43680), (480, 42861), (504, 40820), (520, 39564), (546, 37680), (560, 36738), (585, 35168), (624, 32970), (628, 32760), (630, 32656), (672, 30615), (720, 28574), (728, 28260), (780, 26376), (785, 26208), (819, 25120), (840, 24492), (910, 22608), (936, 21980), (942, 21840), (1008, 20410), (1040, 19782), (1092, 18840), (1099, 18720), (1120, 18369), (1170, 17584), (1248, 16485), (1256, 16380), (1260, 16328), (1365, 15072), (1413, 14560), (1440, 14287), (1456, 14130), (1560, 13188), (1570, 13104), (1638, 12560), (1680, 12246), (1820, 11304), (1872, 10990), (1884, 10920), (2016, 10205), (2041, 10080), (2080, 9891), (2184, 9420), (2198, 9360), (2340, 8792), (2355, 8736), (2512, 8190), (2520, 8164), (2730, 7536), (2826, 7280), (2912, 7065), (3120, 6594), (3140, 6552), (3276, 6280), (3297, 6240), (3360, 6123), (3640, 5652), (3744, 5495), (3768, 5460), (4082, 5040), (4095, 5024), (4368, 4710), (4396, 4680)]