20633760

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1$

素因数の和:140

約数の個数: 288

約数和(自身を含む): 84913920

約数和(自身を除く): 64280160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 23, 24, 28, 30, 32, 35, 36, 40, 42, 45, 46, 48, 56, 60, 63, 69, 70, 72, 80, 84, 89, 90, 92, 96, 105, 112, 115, 120, 126, 138, 140, 144, 160, 161, 168, 178, 180, 184, 207, 210, 224, 230, 240, 252, 267, 276, 280, 288, 315, 322, 336, 345, 356, 360, 368, 414, 420, 445, 460, 480, 483, 504, 534, 552, 560, 623, 630, 644, 672, 690, 712, 720, 736, 801, 805, 828, 840, 890, 920, 966, 1008, 1035, 1068, 1104, 1120, 1246, 1260, 1288, 1335, 1380, 1424, 1440, 1449, 1602, 1610, 1656, 1680, 1780, 1840, 1869, 1932, 2016, 2047, 2070, 2136, 2208, 2415, 2492, 2520, 2576, 2670, 2760, 2848, 2898, 3115, 3204, 3220, 3312, 3360, 3560, 3680, 3738, 3864, 4005, 4094, 4140, 4272, 4830, 4984, 5040, 5152, 5340, 5520, 5607, 5796, 6141, 6230, 6408, 6440, 6624, 7120, 7245, 7476, 7728, 8010, 8188, 8280, 8544, 9345, 9660, 9968, 10080, 10235, 10680, 11040, 11214, 11592, 12282, 12460, 12816, 12880, 14240, 14329, 14490, 14952, 15456, 16020, 16376, 16560, 18423, 18690, 19320, 19936, 20470, 21360, 22428, 23184, 24564, 24920, 25632, 25760, 28035, 28658, 28980, 29904, 30705, 32040, 32752, 33120, 36846, 37380, 38640, 40940, 42720, 42987, 44856, 46368, 49128, 49840, 56070, 57316, 57960, 59808, 61410, 64080, 65504, 71645, 73692, 74760, 77280, 81880, 85974, 89712, 92115, 98256, 99680, 112140, 114632, 115920, 122820, 128160, 128961, 143290, 147384, 149520, 163760, 171948, 179424, 184230, 196512, 214935, 224280, 229264, 231840, 245640, 257922, 286580, 294768, 299040, 327520, 343896, 368460, 429870, 448560, 458528, 491280, 515844, 573160, 589536, 644805, 687792, 736920, 859740, 897120, 982560, 1031688, 1146320, 1289610, 1375584, 1473840, 1719480, 2063376, 2292640, 2579220, 2947680, 3438960, 4126752, 5158440, 6877920, 10316880, 20633760]

約数ペア:

[(1, 20633760), (2, 10316880), (3, 6877920), (4, 5158440), (5, 4126752), (6, 3438960), (7, 2947680), (8, 2579220), (9, 2292640), (10, 2063376), (12, 1719480), (14, 1473840), (15, 1375584), (16, 1289610), (18, 1146320), (20, 1031688), (21, 982560), (23, 897120), (24, 859740), (28, 736920), (30, 687792), (32, 644805), (35, 589536), (36, 573160), (40, 515844), (42, 491280), (45, 458528), (46, 448560), (48, 429870), (56, 368460), (60, 343896), (63, 327520), (69, 299040), (70, 294768), (72, 286580), (80, 257922), (84, 245640), (89, 231840), (90, 229264), (92, 224280), (96, 214935), (105, 196512), (112, 184230), (115, 179424), (120, 171948), (126, 163760), (138, 149520), (140, 147384), (144, 143290), (160, 128961), (161, 128160), (168, 122820), (178, 115920), (180, 114632), (184, 112140), (207, 99680), (210, 98256), (224, 92115), (230, 89712), (240, 85974), (252, 81880), (267, 77280), (276, 74760), (280, 73692), (288, 71645), (315, 65504), (322, 64080), (336, 61410), (345, 59808), (356, 57960), (360, 57316), (368, 56070), (414, 49840), (420, 49128), (445, 46368), (460, 44856), (480, 42987), (483, 42720), (504, 40940), (534, 38640), (552, 37380), (560, 36846), (623, 33120), (630, 32752), (644, 32040), (672, 30705), (690, 29904), (712, 28980), (720, 28658), (736, 28035), (801, 25760), (805, 25632), (828, 24920), (840, 24564), (890, 23184), (920, 22428), (966, 21360), (1008, 20470), (1035, 19936), (1068, 19320), (1104, 18690), (1120, 18423), (1246, 16560), (1260, 16376), (1288, 16020), (1335, 15456), (1380, 14952), (1424, 14490), (1440, 14329), (1449, 14240), (1602, 12880), (1610, 12816), (1656, 12460), (1680, 12282), (1780, 11592), (1840, 11214), (1869, 11040), (1932, 10680), (2016, 10235), (2047, 10080), (2070, 9968), (2136, 9660), (2208, 9345), (2415, 8544), (2492, 8280), (2520, 8188), (2576, 8010), (2670, 7728), (2760, 7476), (2848, 7245), (2898, 7120), (3115, 6624), (3204, 6440), (3220, 6408), (3312, 6230), (3360, 6141), (3560, 5796), (3680, 5607), (3738, 5520), (3864, 5340), (4005, 5152), (4094, 5040), (4140, 4984), (4272, 4830)]