388618995

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{6521}}^1$

素因数の和:6695

約数の個数: 32

約数和(自身を含む): 648025920

約数和(自身を除く): 259406925

約数列:

[1, 3, 5, 15, 29, 87, 137, 145, 411, 435, 685, 2055, 3973, 6521, 11919, 19563, 19865, 32605, 59595, 97815, 189109, 567327, 893377, 945545, 2680131, 2836635, 4466885, 13400655, 25907933, 77723799, 129539665, 388618995]

約数ペア:

[(1, 388618995), (3, 129539665), (5, 77723799), (15, 25907933), (29, 13400655), (87, 4466885), (137, 2836635), (145, 2680131), (411, 945545), (435, 893377), (685, 567327), (2055, 189109), (3973, 97815), (6521, 59595), (11919, 32605), (19563, 19865)]