664840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1511}}^1$

素因数の和:1533

約数の個数: 32

約数和(自身を含む): 1632960

約数和(自身を除く): 968120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 1511, 3022, 6044, 7555, 12088, 15110, 16621, 30220, 33242, 60440, 66484, 83105, 132968, 166210, 332420, 664840]

約数ペア:

[(1, 664840), (2, 332420), (4, 166210), (5, 132968), (8, 83105), (10, 66484), (11, 60440), (20, 33242), (22, 30220), (40, 16621), (44, 15110), (55, 12088), (88, 7555), (110, 6044), (220, 3022), (440, 1511)]