38915440

素因数分解:

$2^4\times 5^1\times {\mathrm{486443}}^1$

素因数の和:486456

約数の個数: 20

約数和(自身を含む): 90478584

約数和(自身を除く): 51563144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 486443, 972886, 1945772, 2432215, 3891544, 4864430, 7783088, 9728860, 19457720, 38915440]

約数ペア:

[(1, 38915440), (2, 19457720), (4, 9728860), (5, 7783088), (8, 4864430), (10, 3891544), (16, 2432215), (20, 1945772), (40, 972886), (80, 486443)]