20665008

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1$

素因数の和:136

約数の個数: 240

約数和(自身を含む): 75828480

約数和(自身を除く): 55163472

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 16, 18, 19, 21, 24, 26, 28, 36, 38, 39, 42, 48, 52, 56, 57, 63, 72, 76, 78, 83, 84, 91, 104, 112, 114, 117, 126, 133, 144, 152, 156, 166, 168, 171, 182, 208, 228, 234, 247, 249, 252, 266, 273, 304, 312, 332, 336, 342, 364, 399, 456, 468, 494, 498, 504, 532, 546, 581, 624, 664, 684, 728, 741, 747, 798, 819, 912, 936, 988, 996, 1008, 1064, 1079, 1092, 1162, 1197, 1328, 1368, 1456, 1482, 1494, 1577, 1596, 1638, 1729, 1743, 1872, 1976, 1992, 2128, 2158, 2184, 2223, 2324, 2394, 2736, 2964, 2988, 3154, 3192, 3237, 3276, 3458, 3486, 3952, 3984, 4316, 4368, 4446, 4648, 4731, 4788, 5187, 5229, 5928, 5976, 6308, 6384, 6474, 6552, 6916, 6972, 7553, 8632, 8892, 9296, 9462, 9576, 9711, 10374, 10458, 11039, 11856, 11952, 12616, 12948, 13104, 13832, 13944, 14193, 15106, 15561, 17264, 17784, 18924, 19152, 19422, 20501, 20748, 20916, 22078, 22659, 25232, 25896, 27664, 27888, 28386, 30212, 31122, 33117, 35568, 37848, 38844, 41002, 41496, 41832, 44156, 45318, 51792, 56772, 60424, 61503, 62244, 66234, 67977, 75696, 77688, 82004, 82992, 83664, 88312, 90636, 99351, 113544, 120848, 123006, 124488, 132468, 135954, 143507, 155376, 164008, 176624, 181272, 184509, 198702, 227088, 246012, 248976, 264936, 271908, 287014, 328016, 362544, 369018, 397404, 430521, 492024, 529872, 543816, 574028, 738036, 794808, 861042, 984048, 1087632, 1148056, 1291563, 1476072, 1589616, 1722084, 2296112, 2583126, 2952144, 3444168, 5166252, 6888336, 10332504, 20665008]

約数ペア:

[(1, 20665008), (2, 10332504), (3, 6888336), (4, 5166252), (6, 3444168), (7, 2952144), (8, 2583126), (9, 2296112), (12, 1722084), (13, 1589616), (14, 1476072), (16, 1291563), (18, 1148056), (19, 1087632), (21, 984048), (24, 861042), (26, 794808), (28, 738036), (36, 574028), (38, 543816), (39, 529872), (42, 492024), (48, 430521), (52, 397404), (56, 369018), (57, 362544), (63, 328016), (72, 287014), (76, 271908), (78, 264936), (83, 248976), (84, 246012), (91, 227088), (104, 198702), (112, 184509), (114, 181272), (117, 176624), (126, 164008), (133, 155376), (144, 143507), (152, 135954), (156, 132468), (166, 124488), (168, 123006), (171, 120848), (182, 113544), (208, 99351), (228, 90636), (234, 88312), (247, 83664), (249, 82992), (252, 82004), (266, 77688), (273, 75696), (304, 67977), (312, 66234), (332, 62244), (336, 61503), (342, 60424), (364, 56772), (399, 51792), (456, 45318), (468, 44156), (494, 41832), (498, 41496), (504, 41002), (532, 38844), (546, 37848), (581, 35568), (624, 33117), (664, 31122), (684, 30212), (728, 28386), (741, 27888), (747, 27664), (798, 25896), (819, 25232), (912, 22659), (936, 22078), (988, 20916), (996, 20748), (1008, 20501), (1064, 19422), (1079, 19152), (1092, 18924), (1162, 17784), (1197, 17264), (1328, 15561), (1368, 15106), (1456, 14193), (1482, 13944), (1494, 13832), (1577, 13104), (1596, 12948), (1638, 12616), (1729, 11952), (1743, 11856), (1872, 11039), (1976, 10458), (1992, 10374), (2128, 9711), (2158, 9576), (2184, 9462), (2223, 9296), (2324, 8892), (2394, 8632), (2736, 7553), (2964, 6972), (2988, 6916), (3154, 6552), (3192, 6474), (3237, 6384), (3276, 6308), (3458, 5976), (3486, 5928), (3952, 5229), (3984, 5187), (4316, 4788), (4368, 4731), (4446, 4648)]