18215440

素因数分解:

$2^4\times 5^1\times {\mathrm{227693}}^1$

素因数の和:227706

約数の個数: 20

約数和(自身を含む): 42351084

約数和(自身を除く): 24135644

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 227693, 455386, 910772, 1138465, 1821544, 2276930, 3643088, 4553860, 9107720, 18215440]

約数ペア:

[(1, 18215440), (2, 9107720), (4, 4553860), (5, 3643088), (8, 2276930), (10, 1821544), (16, 1138465), (20, 910772), (40, 455386), (80, 227693)]