81160976

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{307}}^1$

素因数の和:400

約数の個数: 80

約数和(自身を含む): 179655168

約数和(自身を除く): 98494192

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 41, 52, 62, 82, 104, 124, 164, 208, 248, 307, 328, 403, 496, 533, 614, 656, 806, 1066, 1228, 1271, 1612, 2132, 2456, 2542, 3224, 3991, 4264, 4912, 5084, 6448, 7982, 8528, 9517, 10168, 12587, 15964, 16523, 19034, 20336, 25174, 31928, 33046, 38068, 50348, 63856, 66092, 76136, 100696, 123721, 132184, 152272, 163631, 201392, 247442, 264368, 327262, 390197, 494884, 654524, 780394, 989768, 1309048, 1560788, 1979536, 2618096, 3121576, 5072561, 6243152, 10145122, 20290244, 40580488, 81160976]

約数ペア:

[(1, 81160976), (2, 40580488), (4, 20290244), (8, 10145122), (13, 6243152), (16, 5072561), (26, 3121576), (31, 2618096), (41, 1979536), (52, 1560788), (62, 1309048), (82, 989768), (104, 780394), (124, 654524), (164, 494884), (208, 390197), (248, 327262), (307, 264368), (328, 247442), (403, 201392), (496, 163631), (533, 152272), (614, 132184), (656, 123721), (806, 100696), (1066, 76136), (1228, 66092), (1271, 63856), (1612, 50348), (2132, 38068), (2456, 33046), (2542, 31928), (3224, 25174), (3991, 20336), (4264, 19034), (4912, 16523), (5084, 15964), (6448, 12587), (7982, 10168), (8528, 9517)]