201820405

素因数分解:

$5^1\times {\mathrm{89}}^1\times {\mathrm{347}}^1\times {\mathrm{1307}}^1$

素因数の和:1748

約数の個数: 16

約数和(自身を含む): 245799360

約数和(自身を除く): 43978955

約数列:

[1, 5, 89, 347, 445, 1307, 1735, 6535, 30883, 116323, 154415, 453529, 581615, 2267645, 40364081, 201820405]

約数ペア:

[(1, 201820405), (5, 40364081), (89, 2267645), (347, 581615), (445, 453529), (1307, 154415), (1735, 116323), (6535, 30883)]