157838080

素因数分解:

$2^8\times 5^1\times {\mathrm{123311}}^1$

素因数の和:123332

約数の個数: 36

約数和(自身を含む): 378074592

約数和(自身を除く): 220236512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 123311, 246622, 493244, 616555, 986488, 1233110, 1972976, 2466220, 3945952, 4932440, 7891904, 9864880, 15783808, 19729760, 31567616, 39459520, 78919040, 157838080]

約数ペア:

[(1, 157838080), (2, 78919040), (4, 39459520), (5, 31567616), (8, 19729760), (10, 15783808), (16, 9864880), (20, 7891904), (32, 4932440), (40, 3945952), (64, 2466220), (80, 1972976), (128, 1233110), (160, 986488), (256, 616555), (320, 493244), (640, 246622), (1280, 123311)]