30987975

素因数分解:

$3^1\times 5^2\times {\mathrm{263}}^1\times {\mathrm{1571}}^1$

素因数の和:1847

約数の個数: 24

約数和(自身を含む): 51460992

約数和(自身を除く): 20473017

約数列:

[1, 3, 5, 15, 25, 75, 263, 789, 1315, 1571, 3945, 4713, 6575, 7855, 19725, 23565, 39275, 117825, 413173, 1239519, 2065865, 6197595, 10329325, 30987975]

約数ペア:

[(1, 30987975), (3, 10329325), (5, 6197595), (15, 2065865), (25, 1239519), (75, 413173), (263, 117825), (789, 39275), (1315, 23565), (1571, 19725), (3945, 7855), (4713, 6575)]