388771815

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{439}}^1\times {\mathrm{1373}}^1$

素因数の和:1863

約数の個数: 32

約数和(自身を含む): 638415360

約数和(自身を除く): 249643545

約数列:

[1, 3, 5, 15, 43, 129, 215, 439, 645, 1317, 1373, 2195, 4119, 6585, 6865, 18877, 20595, 56631, 59039, 94385, 177117, 283155, 295195, 602747, 885585, 1808241, 3013735, 9041205, 25918121, 77754363, 129590605, 388771815]

約数ペア:

[(1, 388771815), (3, 129590605), (5, 77754363), (15, 25918121), (43, 9041205), (129, 3013735), (215, 1808241), (439, 885585), (645, 602747), (1317, 295195), (1373, 283155), (2195, 177117), (4119, 94385), (6585, 59039), (6865, 56631), (18877, 20595)]