81727776

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{263}}^1$

素因数の和:375

約数の個数: 144

約数和(自身を含む): 254270016

約数和(自身を除く): 172542240

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 48, 52, 72, 78, 83, 96, 104, 117, 144, 156, 166, 208, 234, 249, 263, 288, 312, 332, 416, 468, 498, 526, 624, 664, 747, 789, 936, 996, 1052, 1079, 1248, 1328, 1494, 1578, 1872, 1992, 2104, 2158, 2367, 2656, 2988, 3156, 3237, 3419, 3744, 3984, 4208, 4316, 4734, 5976, 6312, 6474, 6838, 7968, 8416, 8632, 9468, 9711, 10257, 11952, 12624, 12948, 13676, 17264, 18936, 19422, 20514, 21829, 23904, 25248, 25896, 27352, 30771, 34528, 37872, 38844, 41028, 43658, 51792, 54704, 61542, 65487, 75744, 77688, 82056, 87316, 103584, 109408, 123084, 130974, 155376, 164112, 174632, 196461, 246168, 261948, 283777, 310752, 328224, 349264, 392922, 492336, 523896, 567554, 698528, 785844, 851331, 984672, 1047792, 1135108, 1571688, 1702662, 2095584, 2270216, 2553993, 3143376, 3405324, 4540432, 5107986, 6286752, 6810648, 9080864, 10215972, 13621296, 20431944, 27242592, 40863888, 81727776]

約数ペア:

[(1, 81727776), (2, 40863888), (3, 27242592), (4, 20431944), (6, 13621296), (8, 10215972), (9, 9080864), (12, 6810648), (13, 6286752), (16, 5107986), (18, 4540432), (24, 3405324), (26, 3143376), (32, 2553993), (36, 2270216), (39, 2095584), (48, 1702662), (52, 1571688), (72, 1135108), (78, 1047792), (83, 984672), (96, 851331), (104, 785844), (117, 698528), (144, 567554), (156, 523896), (166, 492336), (208, 392922), (234, 349264), (249, 328224), (263, 310752), (288, 283777), (312, 261948), (332, 246168), (416, 196461), (468, 174632), (498, 164112), (526, 155376), (624, 130974), (664, 123084), (747, 109408), (789, 103584), (936, 87316), (996, 82056), (1052, 77688), (1079, 75744), (1248, 65487), (1328, 61542), (1494, 54704), (1578, 51792), (1872, 43658), (1992, 41028), (2104, 38844), (2158, 37872), (2367, 34528), (2656, 30771), (2988, 27352), (3156, 25896), (3237, 25248), (3419, 23904), (3744, 21829), (3984, 20514), (4208, 19422), (4316, 18936), (4734, 17264), (5976, 13676), (6312, 12948), (6474, 12624), (6838, 11952), (7968, 10257), (8416, 9711), (8632, 9468)]