28687085

素因数分解:

$5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{19991}}^1$

素因数の和:20044

約数の個数: 16

約数和(自身を含む): 40303872

約数和(自身を除く): 11616787

約数列:

[1, 5, 7, 35, 41, 205, 287, 1435, 19991, 99955, 139937, 699685, 819631, 4098155, 5737417, 28687085]

約数ペア:

[(1, 28687085), (5, 5737417), (7, 4098155), (35, 819631), (41, 699685), (205, 139937), (287, 99955), (1435, 19991)]