20604160

素因数分解:

$2^8\times 5^1\times {\mathrm{16097}}^1$

素因数の和:16118

約数の個数: 36

約数和(自身を含む): 49356468

約数和(自身を除く): 28752308

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 16097, 32194, 64388, 80485, 128776, 160970, 257552, 321940, 515104, 643880, 1030208, 1287760, 2060416, 2575520, 4120832, 5151040, 10302080, 20604160]

約数ペア:

[(1, 20604160), (2, 10302080), (4, 5151040), (5, 4120832), (8, 2575520), (10, 2060416), (16, 1287760), (20, 1030208), (32, 643880), (40, 515104), (64, 321940), (80, 257552), (128, 160970), (160, 128776), (256, 80485), (320, 64388), (640, 32194), (1280, 16097)]