16387405

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1$

素因数の和:253

約数の個数: 32

約数和(自身を含む): 22377600

約数和(自身を除く): 5990195

約数列:

[1, 5, 17, 19, 73, 85, 95, 139, 323, 365, 695, 1241, 1387, 1615, 2363, 2641, 6205, 6935, 10147, 11815, 13205, 23579, 44897, 50735, 117895, 172499, 192793, 224485, 862495, 963965, 3277481, 16387405]

約数ペア:

[(1, 16387405), (5, 3277481), (17, 963965), (19, 862495), (73, 224485), (85, 192793), (95, 172499), (139, 117895), (323, 50735), (365, 44897), (695, 23579), (1241, 13205), (1387, 11815), (1615, 10147), (2363, 6935), (2641, 6205)]