208020145

素因数分解:

$5^1\times {\mathrm{89}}^1\times {\mathrm{643}}^1\times {\mathrm{727}}^1$

素因数の和:1464

約数の個数: 16

約数和(自身を含む): 253169280

約数和(自身を除く): 45149135

約数列:

[1, 5, 89, 445, 643, 727, 3215, 3635, 57227, 64703, 286135, 323515, 467461, 2337305, 41604029, 208020145]

約数ペア:

[(1, 208020145), (5, 41604029), (89, 2337305), (445, 467461), (643, 323515), (727, 286135), (3215, 64703), (3635, 57227)]