201916889505

素因数分解:

$3^4\times 5^1\times {\mathrm{498560221}}^1$

素因数の和:498560238

約数の個数: 20

約数和(自身を含む): 361954721172

約数和(自身を除く): 160037831667

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 498560221, 1495680663, 2492801105, 4487041989, 7478403315, 13461125967, 22435209945, 40383377901, 67305629835, 201916889505]

約数ペア:

[(1, 201916889505), (3, 67305629835), (5, 40383377901), (9, 22435209945), (15, 13461125967), (27, 7478403315), (45, 4487041989), (81, 2492801105), (135, 1495680663), (405, 498560221)]