81038080

素因数分解:

$2^8\times 5^1\times {\mathrm{63311}}^1$

素因数の和:63332

約数の個数: 36

約数和(自身を含む): 194114592

約数和(自身を除く): 113076512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 63311, 126622, 253244, 316555, 506488, 633110, 1012976, 1266220, 2025952, 2532440, 4051904, 5064880, 8103808, 10129760, 16207616, 20259520, 40519040, 81038080]

約数ペア:

[(1, 81038080), (2, 40519040), (4, 20259520), (5, 16207616), (8, 10129760), (10, 8103808), (16, 5064880), (20, 4051904), (32, 2532440), (40, 2025952), (64, 1266220), (80, 1012976), (128, 633110), (160, 506488), (256, 316555), (320, 253244), (640, 126622), (1280, 63311)]