18049520

素因数分解:

$2^4\times 5^1\times {\mathrm{225619}}^1$

素因数の和:225632

約数の個数: 20

約数和(自身を含む): 41965320

約数和(自身を除く): 23915800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 225619, 451238, 902476, 1128095, 1804952, 2256190, 3609904, 4512380, 9024760, 18049520]

約数ペア:

[(1, 18049520), (2, 9024760), (4, 4512380), (5, 3609904), (8, 2256190), (10, 1804952), (16, 1128095), (20, 902476), (40, 451238), (80, 225619)]