1998361708

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^2\times {\mathrm{61}}^1\times {\mathrm{463}}^1$

素因数の和:580

約数の個数: 108

約数和(自身を含む): 4373282592

約数和(自身を除く): 2374920884

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 61, 76, 98, 122, 133, 196, 244, 266, 361, 427, 463, 532, 722, 854, 926, 931, 1159, 1444, 1708, 1852, 1862, 2318, 2527, 2989, 3241, 3724, 4636, 5054, 5978, 6482, 8113, 8797, 10108, 11956, 12964, 16226, 17594, 17689, 22021, 22687, 28243, 32452, 35188, 35378, 44042, 45374, 56486, 56791, 61579, 70756, 88084, 90748, 112972, 113582, 123158, 154147, 167143, 197701, 227164, 246316, 308294, 334286, 395402, 431053, 536617, 616588, 668572, 790804, 862106, 1073234, 1079029, 1170001, 1383907, 1724212, 2146468, 2158058, 2340002, 2767814, 3756319, 4316116, 4680004, 5535628, 7512638, 8190007, 10195723, 15025276, 16380014, 20391446, 26294233, 32760028, 40782892, 52588466, 71370061, 105176932, 142740122, 285480244, 499590427, 999180854, 1998361708]

約数ペア:

[(1, 1998361708), (2, 999180854), (4, 499590427), (7, 285480244), (14, 142740122), (19, 105176932), (28, 71370061), (38, 52588466), (49, 40782892), (61, 32760028), (76, 26294233), (98, 20391446), (122, 16380014), (133, 15025276), (196, 10195723), (244, 8190007), (266, 7512638), (361, 5535628), (427, 4680004), (463, 4316116), (532, 3756319), (722, 2767814), (854, 2340002), (926, 2158058), (931, 2146468), (1159, 1724212), (1444, 1383907), (1708, 1170001), (1852, 1079029), (1862, 1073234), (2318, 862106), (2527, 790804), (2989, 668572), (3241, 616588), (3724, 536617), (4636, 431053), (5054, 395402), (5978, 334286), (6482, 308294), (8113, 246316), (8797, 227164), (10108, 197701), (11956, 167143), (12964, 154147), (16226, 123158), (17594, 113582), (17689, 112972), (22021, 90748), (22687, 88084), (28243, 70756), (32452, 61579), (35188, 56791), (35378, 56486), (44042, 45374)]