20457285888

素因数分解:

$2^8\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{421}}^1$

素因数の和:641

約数の個数: 288

約数和(自身を含む): 61056013312

約数和(自身を除く): 40598727424

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 31, 32, 39, 48, 52, 62, 64, 78, 93, 96, 104, 124, 128, 156, 157, 186, 192, 208, 248, 256, 312, 314, 372, 384, 403, 416, 421, 471, 496, 624, 628, 744, 768, 806, 832, 842, 942, 992, 1209, 1248, 1256, 1263, 1488, 1612, 1664, 1684, 1884, 1984, 2041, 2418, 2496, 2512, 2526, 2976, 3224, 3328, 3368, 3768, 3968, 4082, 4836, 4867, 4992, 5024, 5052, 5473, 5952, 6123, 6448, 6736, 7536, 7936, 8164, 9672, 9734, 9984, 10048, 10104, 10946, 11904, 12246, 12896, 13051, 13472, 14601, 15072, 16328, 16419, 19344, 19468, 20096, 20208, 21892, 23808, 24492, 25792, 26102, 26944, 29202, 30144, 32656, 32838, 38688, 38936, 39153, 40192, 40416, 43784, 48984, 51584, 52204, 53888, 58404, 60288, 63271, 65312, 65676, 66097, 77376, 77872, 78306, 80832, 87568, 97968, 103168, 104408, 107776, 116808, 120576, 126542, 130624, 131352, 132194, 154752, 155744, 156612, 161664, 169663, 175136, 189813, 195936, 198291, 208816, 233616, 253084, 261248, 262704, 264388, 309504, 311488, 313224, 323328, 339326, 350272, 379626, 391872, 396582, 417632, 467232, 506168, 508989, 522496, 525408, 528776, 622976, 626448, 678652, 700544, 759252, 783744, 793164, 835264, 859261, 934464, 1012336, 1017978, 1050816, 1057552, 1245952, 1252896, 1357304, 1401088, 1518504, 1567488, 1586328, 1670528, 1718522, 1868928, 2024672, 2035956, 2049007, 2101632, 2115104, 2505792, 2577783, 2714608, 3037008, 3172656, 3341056, 3437044, 3737856, 4049344, 4071912, 4098014, 4203264, 4230208, 5011584, 5155566, 5429216, 6074016, 6147021, 6345312, 6874088, 8098688, 8143824, 8196028, 8460416, 10023168, 10311132, 10858432, 12148032, 12294042, 12690624, 13748176, 16197376, 16287648, 16392056, 16920832, 20622264, 21716864, 24296064, 24588084, 25381248, 26637091, 27496352, 32575296, 32784112, 41244528, 43433728, 48592128, 49176168, 50762496, 53274182, 54992704, 65150592, 65568224, 79911273, 82489056, 98352336, 106548364, 109985408, 130301184, 131136448, 159822546, 164978112, 196704672, 213096728, 219970816, 262272896, 319645092, 329956224, 393409344, 426193456, 524545792, 639290184, 659912448, 786818688, 852386912, 1278580368, 1573637376, 1704773824, 2557160736, 3409547648, 5114321472, 6819095296, 10228642944, 20457285888]

約数ペア:

[(1, 20457285888), (2, 10228642944), (3, 6819095296), (4, 5114321472), (6, 3409547648), (8, 2557160736), (12, 1704773824), (13, 1573637376), (16, 1278580368), (24, 852386912), (26, 786818688), (31, 659912448), (32, 639290184), (39, 524545792), (48, 426193456), (52, 393409344), (62, 329956224), (64, 319645092), (78, 262272896), (93, 219970816), (96, 213096728), (104, 196704672), (124, 164978112), (128, 159822546), (156, 131136448), (157, 130301184), (186, 109985408), (192, 106548364), (208, 98352336), (248, 82489056), (256, 79911273), (312, 65568224), (314, 65150592), (372, 54992704), (384, 53274182), (403, 50762496), (416, 49176168), (421, 48592128), (471, 43433728), (496, 41244528), (624, 32784112), (628, 32575296), (744, 27496352), (768, 26637091), (806, 25381248), (832, 24588084), (842, 24296064), (942, 21716864), (992, 20622264), (1209, 16920832), (1248, 16392056), (1256, 16287648), (1263, 16197376), (1488, 13748176), (1612, 12690624), (1664, 12294042), (1684, 12148032), (1884, 10858432), (1984, 10311132), (2041, 10023168), (2418, 8460416), (2496, 8196028), (2512, 8143824), (2526, 8098688), (2976, 6874088), (3224, 6345312), (3328, 6147021), (3368, 6074016), (3768, 5429216), (3968, 5155566), (4082, 5011584), (4836, 4230208), (4867, 4203264), (4992, 4098014), (5024, 4071912), (5052, 4049344), (5473, 3737856), (5952, 3437044), (6123, 3341056), (6448, 3172656), (6736, 3037008), (7536, 2714608), (7936, 2577783), (8164, 2505792), (9672, 2115104), (9734, 2101632), (9984, 2049007), (10048, 2035956), (10104, 2024672), (10946, 1868928), (11904, 1718522), (12246, 1670528), (12896, 1586328), (13051, 1567488), (13472, 1518504), (14601, 1401088), (15072, 1357304), (16328, 1252896), (16419, 1245952), (19344, 1057552), (19468, 1050816), (20096, 1017978), (20208, 1012336), (21892, 934464), (23808, 859261), (24492, 835264), (25792, 793164), (26102, 783744), (26944, 759252), (29202, 700544), (30144, 678652), (32656, 626448), (32838, 622976), (38688, 528776), (38936, 525408), (39153, 522496), (40192, 508989), (40416, 506168), (43784, 467232), (48984, 417632), (51584, 396582), (52204, 391872), (53888, 379626), (58404, 350272), (60288, 339326), (63271, 323328), (65312, 313224), (65676, 311488), (66097, 309504), (77376, 264388), (77872, 262704), (78306, 261248), (80832, 253084), (87568, 233616), (97968, 208816), (103168, 198291), (104408, 195936), (107776, 189813), (116808, 175136), (120576, 169663), (126542, 161664), (130624, 156612), (131352, 155744), (132194, 154752)]