220919908

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{70717}}^1$

素因数の和:70803

約数の個数: 24

約数和(自身を含む): 427702464

約数和(自身を除く): 206782556

約数列:

[1, 2, 4, 11, 22, 44, 71, 142, 284, 781, 1562, 3124, 70717, 141434, 282868, 777887, 1555774, 3111548, 5020907, 10041814, 20083628, 55229977, 110459954, 220919908]

約数ペア:

[(1, 220919908), (2, 110459954), (4, 55229977), (11, 20083628), (22, 10041814), (44, 5020907), (71, 3111548), (142, 1555774), (284, 777887), (781, 282868), (1562, 141434), (3124, 70717)]