262406872

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{311}}^1$

素因数の和:417

約数の個数: 128

約数和(自身を含む): 649958400

約数和(自身を除く): 387551528

約数列:

[1, 2, 4, 7, 8, 13, 14, 19, 26, 28, 38, 52, 56, 61, 76, 91, 104, 122, 133, 152, 182, 244, 247, 266, 311, 364, 427, 488, 494, 532, 622, 728, 793, 854, 988, 1064, 1159, 1244, 1586, 1708, 1729, 1976, 2177, 2318, 2488, 3172, 3416, 3458, 4043, 4354, 4636, 5551, 5909, 6344, 6916, 8086, 8113, 8708, 9272, 11102, 11818, 13832, 15067, 16172, 16226, 17416, 18971, 22204, 23636, 28301, 30134, 32344, 32452, 37942, 41363, 44408, 47272, 56602, 60268, 64904, 75884, 76817, 82726, 105469, 113204, 120536, 132797, 151768, 153634, 165452, 210938, 226408, 246623, 265594, 307268, 330904, 360449, 421876, 493246, 531188, 537719, 614536, 720898, 843752, 986492, 1062376, 1075438, 1441796, 1726361, 1972984, 2150876, 2523143, 2883592, 3452722, 4301752, 4685837, 5046286, 6905444, 9371674, 10092572, 13810888, 18743348, 20185144, 32800859, 37486696, 65601718, 131203436, 262406872]

約数ペア:

[(1, 262406872), (2, 131203436), (4, 65601718), (7, 37486696), (8, 32800859), (13, 20185144), (14, 18743348), (19, 13810888), (26, 10092572), (28, 9371674), (38, 6905444), (52, 5046286), (56, 4685837), (61, 4301752), (76, 3452722), (91, 2883592), (104, 2523143), (122, 2150876), (133, 1972984), (152, 1726361), (182, 1441796), (244, 1075438), (247, 1062376), (266, 986492), (311, 843752), (364, 720898), (427, 614536), (488, 537719), (494, 531188), (532, 493246), (622, 421876), (728, 360449), (793, 330904), (854, 307268), (988, 265594), (1064, 246623), (1159, 226408), (1244, 210938), (1586, 165452), (1708, 153634), (1729, 151768), (1976, 132797), (2177, 120536), (2318, 113204), (2488, 105469), (3172, 82726), (3416, 76817), (3458, 75884), (4043, 64904), (4354, 60268), (4636, 56602), (5551, 47272), (5909, 44408), (6344, 41363), (6916, 37942), (8086, 32452), (8113, 32344), (8708, 30134), (9272, 28301), (11102, 23636), (11818, 22204), (13832, 18971), (15067, 17416), (16172, 16226)]