205809406

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{647}}^1\times {\mathrm{761}}^1$

素因数の和:1440

約数の個数: 32

約数和(自身を含む): 355518720

約数和(自身を除く): 149709314

約数列:

[1, 2, 11, 19, 22, 38, 209, 418, 647, 761, 1294, 1522, 7117, 8371, 12293, 14234, 14459, 16742, 24586, 28918, 135223, 159049, 270446, 318098, 492367, 984734, 5416037, 9354973, 10832074, 18709946, 102904703, 205809406]

約数ペア:

[(1, 205809406), (2, 102904703), (11, 18709946), (19, 10832074), (22, 9354973), (38, 5416037), (209, 984734), (418, 492367), (647, 318098), (761, 270446), (1294, 159049), (1522, 135223), (7117, 28918), (8371, 24586), (12293, 16742), (14234, 14459)]