20120490208

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{281}}^1\times {\mathrm{367}}^1$

素因数の和:745

約数の個数: 192

約数和(自身を含む): 49792555008

約数和(自身を除く): 29672064800

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 67, 91, 104, 112, 134, 182, 208, 224, 268, 281, 364, 367, 416, 469, 536, 562, 728, 734, 871, 938, 1072, 1124, 1456, 1468, 1742, 1876, 1967, 2144, 2248, 2569, 2912, 2936, 3484, 3653, 3752, 3934, 4496, 4771, 5138, 5872, 6097, 6968, 7306, 7504, 7868, 8992, 9542, 10276, 11744, 12194, 13936, 14612, 15008, 15736, 18827, 19084, 20552, 24388, 24589, 25571, 27872, 29224, 31472, 33397, 37654, 38168, 41104, 48776, 49178, 51142, 58448, 62944, 66794, 75308, 76336, 82208, 97552, 98356, 102284, 103127, 116896, 131789, 133588, 150616, 152672, 172123, 195104, 196712, 204568, 206254, 244751, 263578, 267176, 301232, 319657, 344246, 393424, 409136, 412508, 489502, 527156, 534352, 602464, 639314, 688492, 721889, 786848, 818272, 825016, 979004, 1054312, 1068704, 1278628, 1340651, 1376984, 1443778, 1650032, 1713257, 1958008, 2108624, 2237599, 2557256, 2681302, 2753968, 2887556, 3300064, 3426514, 3916016, 4217248, 4475198, 5114512, 5362604, 5507936, 5775112, 6853028, 6909509, 7832032, 8950396, 9384557, 10229024, 10725208, 11550224, 13706056, 13819018, 17900792, 18769114, 21450416, 23100448, 27412112, 27638036, 35801584, 37538228, 42900832, 48366563, 54824224, 55276072, 71603168, 75076456, 89823617, 96733126, 110552144, 150152912, 179647234, 193466252, 221104288, 300305824, 359294468, 386932504, 628765319, 718588936, 773865008, 1257530638, 1437177872, 1547730016, 2515061276, 2874355744, 5030122552, 10060245104, 20120490208]

約数ペア:

[(1, 20120490208), (2, 10060245104), (4, 5030122552), (7, 2874355744), (8, 2515061276), (13, 1547730016), (14, 1437177872), (16, 1257530638), (26, 773865008), (28, 718588936), (32, 628765319), (52, 386932504), (56, 359294468), (67, 300305824), (91, 221104288), (104, 193466252), (112, 179647234), (134, 150152912), (182, 110552144), (208, 96733126), (224, 89823617), (268, 75076456), (281, 71603168), (364, 55276072), (367, 54824224), (416, 48366563), (469, 42900832), (536, 37538228), (562, 35801584), (728, 27638036), (734, 27412112), (871, 23100448), (938, 21450416), (1072, 18769114), (1124, 17900792), (1456, 13819018), (1468, 13706056), (1742, 11550224), (1876, 10725208), (1967, 10229024), (2144, 9384557), (2248, 8950396), (2569, 7832032), (2912, 6909509), (2936, 6853028), (3484, 5775112), (3653, 5507936), (3752, 5362604), (3934, 5114512), (4496, 4475198), (4771, 4217248), (5138, 3916016), (5872, 3426514), (6097, 3300064), (6968, 2887556), (7306, 2753968), (7504, 2681302), (7868, 2557256), (8992, 2237599), (9542, 2108624), (10276, 1958008), (11744, 1713257), (12194, 1650032), (13936, 1443778), (14612, 1376984), (15008, 1340651), (15736, 1278628), (18827, 1068704), (19084, 1054312), (20552, 979004), (24388, 825016), (24589, 818272), (25571, 786848), (27872, 721889), (29224, 688492), (31472, 639314), (33397, 602464), (37654, 534352), (38168, 527156), (41104, 489502), (48776, 412508), (49178, 409136), (51142, 393424), (58448, 344246), (62944, 319657), (66794, 301232), (75308, 267176), (76336, 263578), (82208, 244751), (97552, 206254), (98356, 204568), (102284, 196712), (103127, 195104), (116896, 172123), (131789, 152672), (133588, 150616)]