199018145

素因数分解:

$5^1\times {\mathrm{103}}^1\times {\mathrm{601}}^1\times {\mathrm{643}}^1$

素因数の和:1352

約数の個数: 16

約数和(自身を含む): 241917312

約数和(自身を除く): 42899167

約数列:

[1, 5, 103, 515, 601, 643, 3005, 3215, 61903, 66229, 309515, 331145, 386443, 1932215, 39803629, 199018145]

約数ペア:

[(1, 199018145), (5, 39803629), (103, 1932215), (515, 386443), (601, 331145), (643, 309515), (3005, 66229), (3215, 61903)]