13812040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31391}}^1$

素因数の和:31413

約数の個数: 32

約数和(自身を含む): 33903360

約数和(自身を除く): 20091320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 31391, 62782, 125564, 156955, 251128, 313910, 345301, 627820, 690602, 1255640, 1381204, 1726505, 2762408, 3453010, 6906020, 13812040]

約数ペア:

[(1, 13812040), (2, 6906020), (4, 3453010), (5, 2762408), (8, 1726505), (10, 1381204), (11, 1255640), (20, 690602), (22, 627820), (40, 345301), (44, 313910), (55, 251128), (88, 156955), (110, 125564), (220, 62782), (440, 31391)]