128220405

素因数分解:

$3^1\times 5^1\times {\mathrm{197}}^1\times {\mathrm{43391}}^1$

素因数の和:43596

約数の個数: 16

約数和(自身を含む): 206198784

約数和(自身を除く): 77978379

約数列:

[1, 3, 5, 15, 197, 591, 985, 2955, 43391, 130173, 216955, 650865, 8548027, 25644081, 42740135, 128220405]

約数ペア:

[(1, 128220405), (3, 42740135), (5, 25644081), (15, 8548027), (197, 650865), (591, 216955), (985, 130173), (2955, 43391)]