12978075

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{15731}}^1$

素因数の和:15755

約数の個数: 24

約数和(自身を含む): 23409216

約数和(自身を除く): 10431141

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 165, 275, 825, 15731, 47193, 78655, 173041, 235965, 393275, 519123, 865205, 1179825, 2595615, 4326025, 12978075]

約数ペア:

[(1, 12978075), (3, 4326025), (5, 2595615), (11, 1179825), (15, 865205), (25, 519123), (33, 393275), (55, 235965), (75, 173041), (165, 78655), (275, 47193), (825, 15731)]