15861985

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{787}}^1$

素因数の和:960

約数の個数: 16

約数和(自身を含む): 19857600

約数和(自身を除く): 3995615

約数列:

[1, 5, 29, 139, 145, 695, 787, 3935, 4031, 20155, 22823, 109393, 114115, 546965, 3172397, 15861985]

約数ペア:

[(1, 15861985), (5, 3172397), (29, 546965), (139, 114115), (145, 109393), (695, 22823), (787, 20155), (3935, 4031)]