128250405

素因数分解:

$3^3\times 5^1\times {\mathrm{337}}^1\times {\mathrm{2819}}^1$

素因数の和:3170

約数の個数: 32

約数和(自身を含む): 228758400

約数和(自身を除く): 100507995

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 337, 1011, 1685, 2819, 3033, 5055, 8457, 9099, 14095, 15165, 25371, 42285, 45495, 76113, 126855, 380565, 950003, 2850009, 4750015, 8550027, 14250045, 25650081, 42750135, 128250405]

約数ペア:

[(1, 128250405), (3, 42750135), (5, 25650081), (9, 14250045), (15, 8550027), (27, 4750015), (45, 2850009), (135, 950003), (337, 380565), (1011, 126855), (1685, 76113), (2819, 45495), (3033, 42285), (5055, 25371), (8457, 15165), (9099, 14095)]