30995815

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{311}}^1\times {\mathrm{643}}^1$

素因数の和:990

約数の個数: 16

約数和(自身を含む): 38578176

約数和(自身を除く): 7582361

約数列:

[1, 5, 31, 155, 311, 643, 1555, 3215, 9641, 19933, 48205, 99665, 199973, 999865, 6199163, 30995815]

約数ペア:

[(1, 30995815), (5, 6199163), (31, 999865), (155, 199973), (311, 99665), (643, 48205), (1555, 19933), (3215, 9641)]