25278945

素因数分解:

$3^1\times 5^1\times {\mathrm{421}}^1\times {\mathrm{4003}}^1$

素因数の和:4432

約数の個数: 16

約数和(自身を含む): 40552512

約数和(自身を除く): 15273567

約数列:

[1, 3, 5, 15, 421, 1263, 2105, 4003, 6315, 12009, 20015, 60045, 1685263, 5055789, 8426315, 25278945]

約数ペア:

[(1, 25278945), (3, 8426315), (5, 5055789), (15, 1685263), (421, 60045), (1263, 20015), (2105, 12009), (4003, 6315)]