18340880

素因数分解:

$2^4\times 5^1\times {\mathrm{229261}}^1$

素因数の和:229274

約数の個数: 20

約数和(自身を含む): 42642732

約数和(自身を除く): 24301852

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 229261, 458522, 917044, 1146305, 1834088, 2292610, 3668176, 4585220, 9170440, 18340880]

約数ペア:

[(1, 18340880), (2, 9170440), (4, 4585220), (5, 3668176), (8, 2292610), (10, 1834088), (16, 1146305), (20, 917044), (40, 458522), (80, 229261)]