20508160

素因数分解:

$2^9\times 5^1\times {\mathrm{8011}}^1$

素因数の和:8034

約数の個数: 40

約数和(自身を含む): 49177656

約数和(自身を除く): 28669496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 8011, 16022, 32044, 40055, 64088, 80110, 128176, 160220, 256352, 320440, 512704, 640880, 1025408, 1281760, 2050816, 2563520, 4101632, 5127040, 10254080, 20508160]

約数ペア:

[(1, 20508160), (2, 10254080), (4, 5127040), (5, 4101632), (8, 2563520), (10, 2050816), (16, 1281760), (20, 1025408), (32, 640880), (40, 512704), (64, 320440), (80, 256352), (128, 160220), (160, 128176), (256, 80110), (320, 64088), (512, 40055), (640, 32044), (1280, 16022), (2560, 8011)]