161547520

素因数分解:

$2^8\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2069}}^1$

素因数の和:2151

約数の個数: 72

約数和(自身を含む): 393490440

約数和(自身を除く): 231942920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 244, 256, 305, 320, 488, 610, 640, 976, 1220, 1280, 1952, 2069, 2440, 3904, 4138, 4880, 7808, 8276, 9760, 10345, 15616, 16552, 19520, 20690, 33104, 39040, 41380, 66208, 78080, 82760, 126209, 132416, 165520, 252418, 264832, 331040, 504836, 529664, 631045, 662080, 1009672, 1262090, 1324160, 2019344, 2524180, 2648320, 4038688, 5048360, 8077376, 10096720, 16154752, 20193440, 32309504, 40386880, 80773760, 161547520]

約数ペア:

[(1, 161547520), (2, 80773760), (4, 40386880), (5, 32309504), (8, 20193440), (10, 16154752), (16, 10096720), (20, 8077376), (32, 5048360), (40, 4038688), (61, 2648320), (64, 2524180), (80, 2019344), (122, 1324160), (128, 1262090), (160, 1009672), (244, 662080), (256, 631045), (305, 529664), (320, 504836), (488, 331040), (610, 264832), (640, 252418), (976, 165520), (1220, 132416), (1280, 126209), (1952, 82760), (2069, 78080), (2440, 66208), (3904, 41380), (4138, 39040), (4880, 33104), (7808, 20690), (8276, 19520), (9760, 16552), (10345, 15616)]