15640405

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{1429}}^1$

素因数の和:1644

約数の個数: 16

約数和(自身を含む): 20592000

約数和(自身を除く): 4951595

約数列:

[1, 5, 11, 55, 199, 995, 1429, 2189, 7145, 10945, 15719, 78595, 284371, 1421855, 3128081, 15640405]

約数ペア:

[(1, 15640405), (5, 3128081), (11, 1421855), (55, 284371), (199, 78595), (995, 15719), (1429, 10945), (2189, 7145)]