289401865

素因数分解:

$5^1\times {\mathrm{101}}^1\times {\mathrm{197}}^1\times {\mathrm{2909}}^1$

素因数の和:3212

約数の個数: 16

約数和(自身を含む): 352622160

約数和(自身を除く): 63220295

約数列:

[1, 5, 101, 197, 505, 985, 2909, 14545, 19897, 99485, 293809, 573073, 1469045, 2865365, 57880373, 289401865]

約数ペア:

[(1, 289401865), (5, 57880373), (101, 2865365), (197, 1469045), (505, 573073), (985, 293809), (2909, 99485), (14545, 19897)]