18307420

素因数分解:

$2^2\times 5^1\times {\mathrm{457}}^1\times {\mathrm{2003}}^1$

素因数の和:2469

約数の個数: 24

約数和(自身を含む): 38548944

約数和(自身を除く): 20241524

約数列:

[1, 2, 4, 5, 10, 20, 457, 914, 1828, 2003, 2285, 4006, 4570, 8012, 9140, 10015, 20030, 40060, 915371, 1830742, 3661484, 4576855, 9153710, 18307420]

約数ペア:

[(1, 18307420), (2, 9153710), (4, 4576855), (5, 3661484), (10, 1830742), (20, 915371), (457, 40060), (914, 20030), (1828, 10015), (2003, 9140), (2285, 8012), (4006, 4570)]