21516160

素因数分解:

$2^7\times 5^1\times {\mathrm{33619}}^1$

素因数の和:33638

約数の個数: 32

約数和(自身を含む): 51438600

約数和(自身を除く): 29922440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 33619, 67238, 134476, 168095, 268952, 336190, 537904, 672380, 1075808, 1344760, 2151616, 2689520, 4303232, 5379040, 10758080, 21516160]

約数ペア:

[(1, 21516160), (2, 10758080), (4, 5379040), (5, 4303232), (8, 2689520), (10, 2151616), (16, 1344760), (20, 1075808), (32, 672380), (40, 537904), (64, 336190), (80, 268952), (128, 168095), (160, 134476), (320, 67238), (640, 33619)]